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<meta name="keywords" content="C4551675, disease or syndrome, hyperkeratosis palmaris et plantaris, keratoderma, palmoplantar, keratodermas, palmoplantar, keratoses, palmoplantar, keratosis palmaris et plantaris, keratosis, palmoplantar, palmar and plantar keratoderma, palmoplantar keratoderma, palmoplantar keratodermas, palmoplantar keratoses, palmoplantar keratosis, thickening of palms and soles, autosomal dominant, autosomal recessive, birth defects, chromosomal disease, chromosome, clinical features, clinical findings, clinical genetics, clinical recommendations, clinvar, congenital chromosomal disease, consumer genetic resources, cytogenetic location, disease characteristics, disease definitions, disease descriptions, disease ontology, disease synonyms, disease vocabulary, dysmorphology, entrez, familial disease, gene, gene-disease relationship, genereviews, genetic disease, genetic disorder, genetic terminology, genetic testing registry, genetics home reference, genomic disease, gtr, hereditary disease, heritable disease, hpo, human phenotype ontology, inherited disease, management guidelines, maternal inheritance, medgen, medical genetics, medical subject headings, mesh, mitochondrial inheritance, mode of inheritance, national center for biotechnology information, national institutes of health, national library of medicine, ncbi, nih, nlm, omim, ordo, orphanet, paternal inheritance, phenome, position statements, professional practice guidelines, rare disease, reference sequence, refseq, snomed ct, syndrome, undiagnosed diseases, x-linked recessive" /><meta name="description" content="Abnormal thickening of the skin of the palms of the hands and the soles of the feet." /><meta name="robots" content="index,nofollow,noarchive" />
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<title>Palmoplantar keratoderma (Concept Id: C4551675)
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<!--
UID=1635750
ConceptID=C4551675
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Palmoplantar keratoderma</div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1635750</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4551675</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>Hyperkeratosis Palmaris et Plantaris; Keratoderma, Palmoplantar; Keratodermas, Palmoplantar; Keratoses, Palmoplantar; Keratosis Palmaris et Plantaris; Keratosis, Palmoplantar; Palmoplantar Keratoderma; Palmoplantar Keratodermas; Palmoplantar Keratoses; Palmoplantar Keratosis</td></tr>
<tr><td><span class="bold">SNOMED CT: </span></td>
<td>Palmoplantar keratoderma (706885006)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td>HPO:</td>
<td><a target="_blank" title="Human Phenotype Ontology" href="https://hpo.jax.org/app/browse/term/HP:0000982">HP:0000982</a></td></tr>
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<div class="portlet mgSection" id="ID_100">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Definition">Definition</h1><a sid="100" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">Abnormal thickening of the skin of the palms of the hands and the soles of the feet. [from <a title="Human Phenotype Ontology" href="http://www.human-phenotype-ontology.org" class="defSource" target="_blank">HPO</a>]</div>
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<div class="portlet mgSection" id="ID_118">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Term_Hierarchy">Term Hierarchy</h1><a sid="118" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln HierarchyGTR"><div class="jig-ncbitabs"><ul><li><a href="#tabGTR">GTR</a></li><li><a href="#tabMGEN">MeSH</a></li></ul><div id="tabGTR"><div class="search_result"><div class="rprts"><div class="chiclet_legend"><span class="chiclet_list" style="position:static;"><span title="Clinical test" class="chiclet Ccolor round">C</span><span>Clinical test,  </span><span title="Research test" class="chiclet Rcolor round">R</span><span>Research test,  </span><span title="OMIM" class="chiclet Ocolor ">O</span><span>OMIM,  </span><span title="GeneReview" class="chiclet Gcolor">G</span><span><em>GeneReviews</em>,  </span><span title="ClinVar" class="chiclet Vcolor">V</span><span>ClinVar  </span></span></div><div id="hierarchy" class="margin_t1"><div class="ds_tree"><ul><li class="matched_ds"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C4551675[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=1635750">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=1635750" ref="ncbi_uid=1635750">V</a></span></span><span class="TLline">Palmoplantar keratoderma</span></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/867443" ref="tree=MeSH" title="MedGen record for Phenotypic abnormality">Phenotypic abnormality</a></span><ul><li><span class="TLline"><a href="/medgen/871309" ref="tree=MeSH" title="MedGen record for Abnormality of prenatal development or birth">Abnormality of prenatal development or birth</a></span><ul><li><span class="TLline"><a href="/medgen/1254" ref="tree=MeSH" title="MedGen record for Fetal anomaly">Fetal anomaly</a></span><ul><li><span class="TLline"><a href="/medgen/474891" ref="tree=MeSH" title="MedGen record for Congenital Systemic Disorder">Congenital Systemic Disorder</a></span><ul><li><span class="TLline"><a href="/medgen/11449" ref="tree=MeSH" title="MedGen record for Congenital anomaly of skin">Congenital anomaly of skin</a></span><ul><li><span class="TLline"><a href="/medgen/20779" ref="tree=MeSH" title="MedGen record for Genodermatosis">Genodermatosis</a></span><ul><li><span class="matched_ds">Palmoplantar keratoderma</span><ul><li><span class="TLline"><a href="/medgen/7201" ref="tree=MeSH" title="MedGen record for Diffuse palmoplantar hyperkeratosis">Diffuse palmoplantar hyperkeratosis</a></span><ul><li><span class="TLline"><a href="/medgen/889561" ref="tree=MeSH" title="MedGen record for Diffuse palmoplantar keratoderma of Thost-Unna">Diffuse palmoplantar keratoderma of Thost-Unna</a></span></li><li><span class="TLline"><a href="/medgen/96070" ref="tree=MeSH" title="MedGen record for Palmoplantar keratoderma with leukoplakia">Palmoplantar keratoderma with leukoplakia</a></span></li><li><span class="TLline"><a href="/medgen/354561" ref="tree=MeSH" title="MedGen record for Palmoplantar keratoderma, epidermolytic">Palmoplantar keratoderma, epidermolytic</a></span><ul><li><span class="TLline"><a href="/medgen/1053126" ref="tree=MeSH" title="MedGen record for Epidermolytic palmoplantar keratoderma, 1">Epidermolytic palmoplantar keratoderma, 1</a></span></li><li><span class="TLline"><a href="/medgen/445412" ref="tree=MeSH" title="MedGen record for Palmoplantar keratoderma, epidermolytic, 2">Palmoplantar keratoderma, epidermolytic, 2</a></span></li></ul></li><li><span class="TLline"><a href="/medgen/891443" ref="tree=MeSH" title="MedGen record for Type A Tylosis">Type A Tylosis</a></span></li><li><span class="TLline"><a href="/medgen/884042" ref="tree=MeSH" title="MedGen record for Type B Tylosis">Type B Tylosis</a></span></li></ul></li><li><span class="TLline"><a href="/medgen/45306" ref="tree=MeSH" title="MedGen record for Papillon-Lefèvre syndrome">Papillon-Lefèvre syndrome</a></span></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></div></div></div></div>
</div>
<div class="portlet mgSection" id="ID_112">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Conditions_with_this_feature">Conditions with this feature</h1><a sid="112" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln clinfeat">
<div class="divPopper rprt" id="rdis_45939"><div><strong>Pityriasis rubra pilaris</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>45939</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0032027</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Pityriasis rubra pilaris is an uncommon skin disorder characterized by the appearance of keratotic follicular papules, well-demarcated salmon-colored erythematous plaques covered with fine powdery scales interspersed with distinct islands of uninvolved skin, and palmoplantar keratoderma. Most cases are sporadic, although up to 6.5% of PRP-affected individuals report a positive family history. The rare familial cases show autosomal dominant inheritance with incomplete penetrance and variable expression: the disorder is usually present at birth or appears during the first years of life and is characterized by prominent follicular hyperkeratosis, diffuse palmoplantar keratoderma, and erythema, with only a modest response to treatment (summary by Fuchs-Telem et al., 2012).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/45939">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_86937"><div><strong>X-linked ichthyosis with steryl-sulfatase deficiency</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>86937</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0079588</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">X-linked ichthyosis is clinically characterized by widespread, dark brown, polygonal scales and generalized dryness. Cutaneous manifestations are present soon after birth and usually do not improve with age. The histopathology of XLI typically shows compact hyperkeratosis and slight acanthosis with a normal granular layer (summary by Takeichi and Akiyama, 2016).&#13; X-linked ichthyosis is fundamentally the same disorder as placental steroid sulfatase deficiency, which is often first noted in the pregnant mother of affected males by decreased estrogen or delayed progression of parturition (Alperin and Shapiro, 1997). This is thus an example of affinity ('lumping') of phenotypes thought previously to be separate, the opposite of genetic heterogeneity.&#13; Schnyder (1970) gave a useful classification of the inherited ichthyoses.&#13; Hernandez-Martin et al. (1999) provided a comprehensive review of X-linked ichthyosis. They pointed out that among all genetic disorders X-linked ichthyosis shows one of the highest ratios of chromosomal deletions; complete deletion has been found in up to 90% of patients.&#13; Takeichi and Akiyama (2016) reviewed inherited nonsyndromic forms of ichthyosis.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/86937">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_82727"><div><strong>Knuckle pads, deafness AND leukonychia syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>82727</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0266004</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Bart-Pumphrey syndrome (BAPS) is an autosomal dominant disorder characterized by sensorineural hearing loss, palmoplantar keratoderma, knuckle pads, and leukonychia, which shows considerable phenotypic variability (summary by Richard et al., 2004).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/82727">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_91010"><div><strong>Naegeli-Franceschetti-Jadassohn syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>91010</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0343111</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Naegeli-Franceschetti-Jadassohn syndrome (NFJS) is a rare autosomal dominant disorder of skin, hair, and teeth. It is characterized by complete absence of dermatoglyphics (fingerprint lines), a reticulate pattern of skin hyperpigmentation that tends to disappear with age, thickening of the palms and soles (palmoplantar keratoderma), and decreased sweating. Dental anomalies including enamel defects, skin blistering, and nail dystrophy have been reported in some patients. It can be distinguished from dermatopathia pigmentosa reticularis (DPR) by the latter's features of lifelong persistence of the skin hyperpigmentation, partial alopecia, and absence of dental anomalies (summary by Lugassy et al., 2006).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/91010">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_140808"><div><strong>Basan syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>140808</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0406707</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Complete congenital absence of dermatoglyphs is a rare syndrome characterized by autosomal dominant inheritance of the lack of ridges on palms and soles, neonatal acral blisters and facial milia, adult traumatic blistering and fissuring, absent or reduced sweating of palms and soles, and contracture of digits. Additional features may include single palmar transverse crease, palmoplantar keratoderma, and nail grooving (summary by Limova et al., 1993).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/140808">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_98032"><div><strong>Ankyloblepharon-ectodermal defects-cleft lip/palate syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>98032</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0406709</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The TP63-related disorders comprise six overlapping phenotypes: Ankyloblepharon-ectodermal defects-cleft lip/palate (AEC) syndrome (which includes Rapp-Hodgkin syndrome). Acro-dermo-ungual-lacrimal-tooth (ADULT) syndrome. Ectrodactyly, ectodermal dysplasia, cleft lip/palate syndrome 3 (EEC3). Limb-mammary syndrome. Split-hand/foot malformation type 4 (SHFM4). Isolated cleft lip/cleft palate (orofacial cleft 8). Individuals typically have varying combinations of ectodermal dysplasia (hypohidrosis, nail dysplasia, sparse hair, tooth abnormalities), cleft lip/palate, split-hand/foot malformation/syndactyly, lacrimal duct obstruction, hypopigmentation, hypoplastic breasts and/or nipples, and hypospadias. Findings associated with a single phenotype include ankyloblepharon filiforme adnatum (tissue strands that completely or partially fuse the upper and lower eyelids), skin erosions especially on the scalp associated with areas of scarring, and alopecia, trismus, and excessive freckling.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/98032">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_224809"><div><strong>Autosomal recessive keratitis-ichthyosis-deafness syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>224809</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1275089</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">IDEDNIK syndrome is characterized by enteropathy, poor weight gain, growth deficiency, skin manifestations (ichthyosis, erythroderma, and keratoderma), sparse hair, global developmental delay, mild-to-severe intellectual disability, and deafness. Additional manifestations can include liver disease, recurrent infections, and hematologic and ocular manifestations (photophobia, corneal scarring, and keratitis). Reduced serum ceruloplasmin and total copper levels are common. Some individuals have findings on brain MRI (cerebral atrophy, basal ganglia abnormalities, and thin corpus callosum). Death prior to age two years occurs in some individuals due to severe enteropathy or sepsis; in others survival into adulthood is reported.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/224809">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_315656"><div><strong>Rapp-Hodgkin syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>315656</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1785148</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The TP63-related disorders comprise six overlapping phenotypes: Ankyloblepharon-ectodermal defects-cleft lip/palate (AEC) syndrome (which includes Rapp-Hodgkin syndrome). Acro-dermo-ungual-lacrimal-tooth (ADULT) syndrome. Ectrodactyly, ectodermal dysplasia, cleft lip/palate syndrome 3 (EEC3). Limb-mammary syndrome. Split-hand/foot malformation type 4 (SHFM4). Isolated cleft lip/cleft palate (orofacial cleft 8). Individuals typically have varying combinations of ectodermal dysplasia (hypohidrosis, nail dysplasia, sparse hair, tooth abnormalities), cleft lip/palate, split-hand/foot malformation/syndactyly, lacrimal duct obstruction, hypopigmentation, hypoplastic breasts and/or nipples, and hypospadias. Findings associated with a single phenotype include ankyloblepharon filiforme adnatum (tissue strands that completely or partially fuse the upper and lower eyelids), skin erosions especially on the scalp associated with areas of scarring, and alopecia, trismus, and excessive freckling.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/315656">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_371355"><div><strong>Autosomal recessive congenital ichthyosis 4A</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>371355</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1832550</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive congenital ichthyosis (ARCI) is a heterogeneous group of disorders of keratinization characterized primarily by abnormal skin scaling over the whole body. These disorders are limited to skin, with approximately two-thirds of patients presenting severe symptoms. The main skin phenotypes are lamellar ichthyosis (LI) and nonbullous congenital ichthyosiform erythroderma (NCIE), although phenotypic overlap within the same patient or among patients from the same family can occur (summary by Fischer, 2009). Neither histopathologic findings nor ultrastructural features clearly distinguish between NCIE and LI. In addition, mutations in several genes have been shown to cause both lamellar and nonbullous ichthyosiform erythrodermal phenotypes (Akiyama et al., 2003). At the First Ichthyosis Consensus Conference in Soreze in 2009, the term 'autosomal recessive congenital ichthyosis' (ARCI) was designated to encompass LI, NCIE, and harlequin ichthyosis (ARCI4B; 242500) (Oji et al., 2010).&#13; NCIE is characterized by prominent erythroderma and fine white, superficial, semiadherent scales. Most patients present with collodion membrane at birth and have palmoplantar keratoderma, often with painful fissures, digital contractures, and loss of pulp volume. In half of the cases, a nail dystrophy including ridging, subungual hyperkeratosis, or hypoplasia has been described. Ectropion, eclabium, scalp involvement, and loss of eyebrows and lashes seem to be more frequent in NCIE than in lamellar ichthyosis (summary by Fischer et al., 2000). In LI, the scales are large, adherent, dark, and pigmented with no skin erythema. Overlapping phenotypes may depend on the age of the patient and the region of the body. The terminal differentiation of the epidermis is perturbed in both forms, leading to a reduced barrier function and defects of lipid composition in the stratum corneum (summary by Lefevre et al., 2006).&#13; In later life, the skin in ARCI may have scales that cover the entire body surface, including the flexural folds, and the scales are highly variable in size and color. Erythema may be very mild and almost invisible. Some affected persons exhibit scarring alopecia, and many have secondary anhidrosis (summary by Eckl et al., 2005).&#13; For a general phenotypic description and discussion of genetic heterogeneity of autosomal recessive congenital ichthyosis, see ARCI1 (242300).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/371355">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_321991"><div><strong>Naxos disease</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>321991</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1832600</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Naxos disease (NXD) is characterized by arrhythmogenic right ventricular cardiomyopathy associated with abnormalities of the skin, hair, and nails. The ectodermal features are evident from birth or early childhood, whereas the cardiac symptoms develop in young adulthood or later. Clinical variability of ectodermal features has been observed, with hair anomalies ranging from woolly hair to alopecia, and skin abnormalities ranging from mild focal palmoplantar keratoderma to generalized skin fragility or even lethal neonatal epidermolysis bullosa (Protonotarios et al., 1986; Cabral et al., 2010; Pigors et al., 2011; Erken et al., 2011; Sen-Chowdhry and McKenna, 2014).&#13; Another syndrome involving cardiomyopathy, woolly hair, and keratoderma (DCWHK; 605676) is caused by mutation in the desmoplakin gene (DSP; 125647). Also see 610476 for a similar disorder caused by homozygous mutation in the DSC2 gene (125645).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/321991">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_332113"><div><strong>CEDNIK syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>332113</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1836033</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Cerebral dysgenesis, neuropathy, ichthyosis, and keratoderma syndrome (CEDNIK) refers to a unique constellation of clinical manifestations including global developmental delay with hypotonia, roving eye movements or nystagmus, poor motor skills, and impaired intellectual development with speech delay. More variable features include microcephaly, feeding difficulties, seizures, ocular anomalies, hearing loss, and nonspecific dysmorphic facial features. Palmoplantar keratoderma and ichthyosis or neuropathy develop in some patients. Brain magnetic resonance imaging (MRI) shows varying degrees of cerebral dysgenesis, including absence of the corpus callosum and cortical dysplasia, as well as hypomyelination, white matter loss, and white matter signal anomalies suggestive of a leukodystrophy. Some patients may show developmental regression; many die in childhood (Fuchs-Telem et al., 2011; Mah-Som et al., 2021). With more patients being reported, several authors (Diggle et al., 2017; Llaci et al., 2019; Mah-Som et al., 2021) have observed that the dermatologic features and peripheral neuropathy show reduced penetrance and are more variable manifestations of this disorder, as they are not observed in all patients with biallelic SNAP29 mutations.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/332113">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_326700"><div><strong>Ichthyosis hystrix of Curth-Macklin</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>326700</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1840296</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The Curth-Macklin type of ichthyosis hystrix (IHCM) is clinically characterized by severe fissuring and mutilating palmoplantar keratoderma. Affected individuals also exhibit extensive dark spiky or verrucous hyperkeratotic plaques over the large joints and trunk, which in some patients may cover almost the entire body. Structural and ultrastructural hallmarks include compact orthokeratotic hyperkeratosis, hypergranulosis with perinuclear edema, binucleated cells, and formation of perinuclear filamentous shells composed of feathery entangled keratin intermediate filaments (summary by Richardson et al., 2006 and Fonseca et al., 2013).&#13; The Lambert type of ichthyosis hystrix (IHL; 146600), in which palms and soles are spared, is caused by mutation in the KRT10 (148080) gene.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/326700">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_375148"><div><strong>Woolly hair-skin fragility syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>375148</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1843292</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Woolly hair-skin fragility syndrome (WHSF) is characterized by woolly hair texture and slow hair growth, as well as superficial skin fragility which is present at birth or appears in the neonatal period and then resolves or persists only as minor palmoplantar skin peeling. The disorder appears to predominantly affect hair, and to a lesser extent skin (Jackson et al., 2023).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/375148">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_343725"><div><strong>Keratosis palmoplantaris striata 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>343725</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1852127</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">PPKS2 is characterized by linear hyperkeratosis of the palms, which is particularly evident in affected individuals who perform manual labor. Hyperkeratosis of the soles primarily involves pressure points, and diffuse background palmoplantar thickening may also be present. (Armstrong et al., 1999; Whittock et al., 1999).&#13; For a discussion of genetic heterogeneity of the striate form of palmoplantar keratoderma, see PPKS1 (148700).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/343725">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_340124"><div><strong>Arrhythmogenic cardiomyopathy with wooly hair and keratoderma</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>340124</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1854063</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Dilated cardiomyopathy with woolly hair and keratoderma (DCWHK) is characterized by the presence of woolly or sparse hair from birth. Some patients exhibit fragile skin with blisters/erosions after minor mechanical trauma, with hyperkeratosis and epidermolytic keratoderma developing in early childhood. Cardiomyopathy may become apparent in the first decade of life, and early death due to heart failure has been reported, but patients may remain asymptomatic into the fourth decade of life. Some patients exhibit an arrhythmogenic form of cardiomyopathy, with sudden death in early adulthood (Carvajal-Huerta, 1998; Whittock et al., 2002; Alcalai et al., 2003; Uzumcu et al., 2006).&#13; Another syndrome involving cardiomyopathy, woolly hair, and keratoderma (Naxos disease; 601214) is caused by mutation in the plakoglobin gene (JUP; 173325). Also see 610476 for a similar disorder caused by homozygous mutation in the DSC2 gene (125645).&#13; Dilated cardiomyopathy with woolly hair, keratoderma, and tooth agenesis (DCWHKTA; 615821) is caused by heterozygous mutation in DSP. An isolated form of striated PPK (PPKS2; 612908) is also caused by heterozygous mutation in DSP.&#13; Reviews&#13; In a review of cardiocutaneous syndromes and arrhythmogenic cardiomyopathy, Sen-Chowdhry and McKenna (2014) stated that although the cardiac component of Carvajal syndrome was originally considered dilated cardiomyopathy, many of its features resemble those of arrhythmogenic cardiomyopathy (see 607450). In addition, they noted that different disease subtypes have been found to coexist within the same kindred, suggesting a role for modifier genes and/or environmental influences.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/340124">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_347366"><div><strong>SchC6pf-Schulz-Passarge syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>347366</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1857069</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Schopf-Schulz-Passarge syndrome (SSPS) is an autosomal recessive disorder characterized by a constellation of multiple eyelid cysts, hypodontia, hypotrichosis, palmoplantar hyperkeratosis, and onychodystrophy (summary by Mallaiah and Dickinson, 2001).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/347366">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_347628"><div><strong>Autosomal recessive congenital ichthyosis 5</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>347628</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1858133</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive congenital ichthyosis (ARCI) is a heterogeneous group of disorders of keratinization characterized primarily by abnormal skin scaling over the whole body. These disorders are limited to skin, with approximately two-thirds of patients presenting severe symptoms. The main skin phenotypes are lamellar ichthyosis (LI) and nonbullous congenital ichthyosiform erythroderma (NCIE), although phenotypic overlap within the same patient or among patients from the same family can occur (summary by Fischer, 2009). Neither histopathologic findings nor ultrastructural features clearly distinguish between NCIE and LI. In addition, mutations in several genes have been shown to cause both lamellar and nonbullous ichthyosiform erythrodermal phenotypes (Akiyama et al., 2003). At the First Ichthyosis Consensus Conference in Soreze in 2009, the term 'autosomal recessive congenital ichthyosis' (ARCI) was designated to encompass LI, NCIE, and harlequin ichthyosis (ARCI4B; 242500) (Oji et al., 2010).&#13; NCIE is characterized by prominent erythroderma and fine white, superficial, semiadherent scales. Most patients present with collodion membrane at birth and have palmoplantar keratoderma, often with painful fissures, digital contractures, and loss of pulp volume. In half of the cases, a nail dystrophy including ridging, subungual hyperkeratosis, or hypoplasia has been described. Ectropion, eclabium, scalp involvement, and loss of eyebrows and lashes seem to be more frequent in NCIE than in lamellar ichthyosis (summary by Fischer et al., 2000). In LI, the scales are large, adherent, dark, and pigmented with no skin erythema. Overlapping phenotypes may depend on the age of the patient and the region of the body. The terminal differentiation of the epidermis is perturbed in both forms, leading to a reduced barrier function and defects of lipid composition in the stratum corneum (summary by Lefevre et al., 2006).&#13; In later life, the skin in ARCI may have scales that cover the entire body surface, including the flexural folds, and the scales are highly variable in size and color. Erythema may be very mild and almost invisible. Some affected persons exhibit scarring alopecia, and many have secondary anhidrosis (summary by Eckl et al., 2005).&#13; For a general phenotypic description and discussion of genetic heterogeneity of autosomal recessive congenital ichthyosis, see ARCI1 (242300).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/347628">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_388129"><div><strong>Poikiloderma with neutropenia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>388129</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1858723</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Poikiloderma with neutropenia (PN) is characterized by an inflammatory eczematous rash (appears at ages 6-12 months) followed by post-inflammatory poikiloderma (at age &gt;2 years) and chronic noncyclic neutropenia typically associated with recurrent sinopulmonary infections in the first two years of life and (often) bronchiectasis. There is increased risk for myelodysplastic syndrome, acute myelogenous leukemia, and skin cancer. Other ectodermal findings include thickened nails, nail dystrophy, and palmar/plantar hyperkeratosis. Most affected individuals also have reactive airway disease, and some have short stature, hypogonadotropic hypogonadism, midfacial retrusion, calcinosis cutis, and non-healing skin ulcers.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/388129">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_351237"><div><strong>Arrhythmogenic right ventricular dysplasia 11</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>351237</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1864850</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Any familial isolated arrhythmogenic right ventricular dysplasia in which the cause of the disease is a mutation in the DSC2 gene.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/351237">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_355410"><div><strong>Ichthyosis, hystrix-like, with hearing loss</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>355410</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1865234</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Hystrix-like ichthyosis with deafness (HID) syndrome is an autosomal dominant keratinizing disorder characterized by sensorineural deafness and spiky hyperkeratosis affecting the entire skin. Erythroderma appears shortly after birth. After the first year of life, spiky and cobblestone-like hyperkeratosis develops, covering the entire skin surface. Palms and soles are only mildly affected. Scarring alopecia may be present (summary by Van Geel et al., 2002).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/355410">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_409749"><div><strong>Arrhythmogenic right ventricular dysplasia 12</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>409749</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1969081</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a form of heart disease that usually appears in adulthood. ARVC is a disorder of the myocardium, which is the muscular wall of the heart. This condition causes part of the myocardium to break down over time, increasing the risk of an abnormal heartbeat (arrhythmia) and sudden death.\n\nARVC may not cause any symptoms in its early stages. However, affected individuals may still be at risk of sudden death, especially during strenuous exercise. When symptoms occur, they most commonly include a sensation of fluttering or pounding in the chest (palpitations), light-headedness, and fainting (syncope). Over time, ARVC can also cause shortness of breath and abnormal swelling in the legs or abdomen. If the myocardium becomes severely damaged in the later stages of the disease, it can lead to heart failure.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/409749">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_436851"><div><strong>Autosomal recessive congenital ichthyosis 6</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>436851</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2677065</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive congenital ichthyosis (ARCI) is a heterogeneous group of disorders of keratinization characterized primarily by abnormal skin scaling over the whole body. These disorders are limited to skin, with approximately two-thirds of patients presenting severe symptoms. The main skin phenotypes are lamellar ichthyosis (LI) and nonbullous congenital ichthyosiform erythroderma (NCIE), although phenotypic overlap within the same patient or among patients from the same family can occur (summary by Fischer, 2009). Neither histopathologic findings nor ultrastructural features clearly distinguish between NCIE and LI. In addition, mutations in several genes have been shown to cause both lamellar and nonbullous ichthyosiform erythrodermal phenotypes (Akiyama et al., 2003). At the First Ichthyosis Consensus Conference in Soreze in 2009, the term 'autosomal recessive congenital ichthyosis' (ARCI) was designated to encompass LI, NCIE, and harlequin ichthyosis (ARCI4B; 242500) (Oji et al., 2010).&#13; NCIE is characterized by prominent erythroderma and fine white, superficial, semiadherent scales. Most patients present with collodion membrane at birth and have palmoplantar keratoderma, often with painful fissures, digital contractures, and loss of pulp volume. In half of the cases, a nail dystrophy including ridging, subungual hyperkeratosis, or hypoplasia has been described. Ectropion, eclabium, scalp involvement, and loss of eyebrows and lashes seem to be more frequent in NCIE than in lamellar ichthyosis (summary by Fischer et al., 2000). In LI, the scales are large, adherent, dark, and pigmented with no skin erythema. Overlapping phenotypes may depend on the age of the patient and the region of the body. The terminal differentiation of the epidermis is perturbed in both forms, leading to a reduced barrier function and defects of lipid composition in the stratum corneum (summary by Lefevre et al., 2006).&#13; In later life, the skin in ARCI may have scales that cover the entire body surface, including the flexural folds, and the scales are highly variable in size and color. Erythema may be very mild and almost invisible. Some affected persons exhibit scarring alopecia, and many have secondary anhidrosis (summary by Eckl et al., 2005).&#13; For a general phenotypic description and discussion of genetic heterogeneity of autosomal recessive congenital ichthyosis, see ARCI1 (242300).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/436851">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_412573"><div><strong>Keratosis follicularis spinulosa decalvans, autosomal dominant</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>412573</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2748527</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Keratosis follicularis spinulosa decalvans (KFSD) is an uncommon genodermatosis characterized by follicular hyperkeratosis, progressive cicatricial alopecia, and photophobia. Most reported cases show X-linked inheritance (KFSDX; 308800) (Castori et al., 2009).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/412573">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_419717"><div><strong>Palmoplantar keratoderma i, striate, focal, or diffuse</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>419717</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2931122</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Striate palmoplantar keratoderma belongs to a group of skin diseases in which there is thickening of the skin on the palms and soles. The striate form is characterized by longitudinal hyperkeratotic lesions extending the length of each finger to the palm, and hyperkeratotic lesions are restricted to regions of the body where pressure and abrasion are greatest (summary by Hunt et al., 2001). Patients with diffuse or focal forms of keratoderma associated with mutation in the DSG1 gene have also been reported (Keren et al., 2005; Milingou et al., 2006).&#13; Genetic Heterogeneity of Keratosis Palmoplantaris Striata&#13; Type II PPKS (PPKS2; 612908) is caused by mutation in the DSP gene (125647) on chromosome 6.&#13; Type III PPKS (PPKS3; 607654) is caused by mutation in the keratin-1 gene (KRT1; 139350) on chromosome 12q.&#13; For a general phenotypic description and a discussion of genetic heterogeneity of palmoplantar keratoderma (PPK), see epidermolytic PPK (144200).&#13; Nitoiu et al. (2014) reviewed desmosome biology in cardiocutaneous syndromes and inherited skin disease, including discussion of the involvement of the DSG1 and DSP genes.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/419717">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_418996"><div><strong>Keratosis palmoplantaris striata 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>418996</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2931123</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Keratosis palmoplantaris striata III (PPKS3) is a rare autosomal dominant skin disorder characterized clinically by early childhood onset of linear and focal hyperkeratosis of the palms and more diffuse changes on the soles (Whittock et al., 2002).&#13; For a discussion of genetic heterogeneity of the striate form of palmoplantar keratoderma, see PPKS1 (148700).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/418996">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_461281"><div><strong>Palmoplantar keratoderma-XX sex reversal-predisposition to squamous cell carcinoma syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>461281</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3149931</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Palmoplantar keratoderma-XX sex reversal-predisposition to squamous cell carcinoma syndrome is characterised by sex reversal in males with a 46, XX (SRY-negative) karyotype, palmoplantar hyperkeratosis and a predisposition to squamous cell carcinoma. To date, five cases (four of whom were brothers) have been described. The aetiology is unknown.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/461281">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_462159"><div><strong>Ectodermal dysplasia-cutaneous syndactyly syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>462159</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3150809</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/462159">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_761665"><div><strong>Autosomal recessive congenital ichthyosis 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>761665</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3539888</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive congenital ichthyosis (ARCI) is a heterogeneous group of disorders of keratinization characterized primarily by abnormal skin scaling over the whole body. These disorders are limited to skin, with approximately two-thirds of patients presenting severe symptoms. The main skin phenotypes are lamellar ichthyosis (LI) and nonbullous congenital ichthyosiform erythroderma (NCIE), although phenotypic overlap within the same patient or among patients from the same family can occur (summary by Fischer, 2009). Neither histopathologic findings nor ultrastructural features clearly distinguish between NCIE and LI. In addition, mutations in several genes have been shown to cause both lamellar and nonbullous ichthyosiform erythrodermal phenotypes (Akiyama et al., 2003). At the First Ichthyosis Consensus Conference in Soreze in 2009, the term 'autosomal recessive congenital ichthyosis' (ARCI) was designated to encompass LI, NCIE, and harlequin ichthyosis (ARCI4B; 242500) (Oji et al., 2010).&#13; NCIE is characterized by prominent erythroderma and fine white, superficial, semiadherent scales. Most patients present with collodion membrane at birth and have palmoplantar keratoderma, often with painful fissures, digital contractures, and loss of pulp volume. In half of the cases, a nail dystrophy including ridging, subungual hyperkeratosis, or hypoplasia has been described. Ectropion, eclabium, scalp involvement, and loss of eyebrows and lashes seem to be more frequent in NCIE than in lamellar ichthyosis (summary by Fischer et al., 2000). In LI, the scales are large, adherent, dark, and pigmented with no skin erythema. Overlapping phenotypes may depend on the age of the patient and the region of the body. The terminal differentiation of the epidermis is perturbed in both forms, leading to a reduced barrier function and defects of lipid composition in the stratum corneum (summary by Lefevre et al., 2006).&#13; In later life, the skin in ARCI may have scales that cover the entire body surface, including the flexural folds, and the scales are highly variable in size and color. Erythema may be very mild and almost invisible. Some affected persons exhibit scarring alopecia, and many have secondary anhidrosis (summary by Eckl et al., 2005).&#13; For a discussion of genetic heterogeneity of autosomal recessive congenital ichthyosis, see ARCI1 (242300).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/761665">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_767262"><div><strong>Autosomal recessive congenital ichthyosis 7</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>767262</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3554348</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive congenital ichthyosis (ARCI) is a heterogeneous group of disorders of keratinization characterized primarily by abnormal skin scaling over the whole body. These disorders are limited to skin, with approximately two-thirds of patients presenting severe symptoms. The main skin phenotypes are lamellar ichthyosis (LI) and nonbullous congenital ichthyosiform erythroderma (NCIE), although phenotypic overlap within the same patient or among patients from the same family can occur (summary by Fischer, 2009). Neither histopathologic findings nor ultrastructural features clearly distinguish between NCIE and LI. In addition, mutations in several genes have been shown to cause both lamellar and nonbullous ichthyosiform erythrodermal phenotypes (Akiyama et al., 2003). At the First Ichthyosis Consensus Conference in Soreze in 2009, the term 'autosomal recessive congenital ichthyosis' (ARCI) was designated to encompass LI, NCIE, and harlequin ichthyosis (ARCI4B; 242500) (Oji et al., 2010).&#13; NCIE is characterized by prominent erythroderma and fine white, superficial, semiadherent scales. Most patients present with collodion membrane at birth and have palmoplantar keratoderma, often with painful fissures, digital contractures, and loss of pulp volume. In half of the cases, a nail dystrophy including ridging, subungual hyperkeratosis, or hypoplasia has been described. Ectropion, eclabium, scalp involvement, and loss of eyebrows and lashes seem to be more frequent in NCIE than in lamellar ichthyosis (summary by Fischer et al., 2000). In LI, the scales are large, adherent, dark, and pigmented with no skin erythema. Overlapping phenotypes may depend on the age of the patient and the region of the body. The terminal differentiation of the epidermis is perturbed in both forms, leading to a reduced barrier function and defects of lipid composition in the stratum corneum (summary by Lefevre et al., 2006).&#13; In later life, the skin in ARCI may have scales that cover the entire body surface, including the flexural folds, and the scales are highly variable in size and color. Erythema may be very mild and almost invisible. Some affected persons exhibit scarring alopecia, and many have secondary anhidrosis (summary by Eckl et al., 2005).&#13; For a general phenotypic description and discussion of genetic heterogeneity of autosomal recessive congenital ichthyosis, see ARCI1 (242300).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/767262">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_767269"><div><strong>Autosomal recessive congenital ichthyosis 10</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>767269</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3554355</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive congenital ichthyosis (ARCI) is a heterogeneous group of disorders of keratinization characterized primarily by abnormal skin scaling over the whole body. These disorders are limited to skin, with approximately two-thirds of patients presenting severe symptoms. The main skin phenotypes are lamellar ichthyosis (LI) and nonbullous congenital ichthyosiform erythroderma (NCIE), although phenotypic overlap within the same patient or among patients from the same family can occur (summary by Fischer, 2009). Neither histopathologic findings nor ultrastructural features clearly distinguish between NCIE and LI. In addition, mutations in several genes have been shown to cause both lamellar and nonbullous ichthyosiform erythrodermal phenotypes (Akiyama et al., 2003). At the First Ichthyosis Consensus Conference in Soreze in 2009, the term 'autosomal recessive congenital ichthyosis' (ARCI) was designated to encompass LI, NCIE, and harlequin ichthyosis (ARCI4B; 242500) (Oji et al., 2010).&#13; NCIE is characterized by prominent erythroderma and fine white, superficial, semiadherent scales. Most patients present with collodion membrane at birth and have palmoplantar keratoderma, often with painful fissures, digital contractures, and loss of pulp volume. In half of the cases, a nail dystrophy including ridging, subungual hyperkeratosis, or hypoplasia has been described. Ectropion, eclabium, scalp involvement, and loss of eyebrows and lashes seem to be more frequent in NCIE than in lamellar ichthyosis (summary by Fischer et al., 2000). In LI, the scales are large, adherent, dark, and pigmented with no skin erythema. Overlapping phenotypes may depend on the age of the patient and the region of the body. The terminal differentiation of the epidermis is perturbed in both forms, leading to a reduced barrier function and defects of lipid composition in the stratum corneum (summary by Lefevre et al., 2006).&#13; In later life, the skin in ARCI may have scales that cover the entire body surface, including the flexural folds, and the scales are highly variable in size and color. Erythema may be very mild and almost invisible. Some affected persons exhibit scarring alopecia, and many have secondary anhidrosis (summary by Eckl et al., 2005).&#13; For a discussion of genetic heterogeneity of autosomal recessive congenital ichthyosis, see ARCI1 (242300).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/767269">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_811523"><div><strong>Pachyonychia congenita 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>811523</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3714948</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Pachyonychia congenita (PC) is characterized by hypertrophic nail dystrophy, painful palmoplantar keratoderma and blistering, oral leukokeratosis, pilosebaceous cysts (including steatocystoma and vellus hair cysts), palmoplantar hyperhydrosis, and follicular keratoses on the trunk and extremities.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/811523">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_811524"><div><strong>Pachyonychia congenita 4</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>811524</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3714949</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Pachyonychia congenita (PC) is characterized by hypertrophic nail dystrophy, painful palmoplantar keratoderma and blistering, oral leukokeratosis, pilosebaceous cysts (including steatocystoma and vellus hair cysts), palmoplantar hyperhydrosis, and follicular keratoses on the trunk and extremities.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/811524">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_813075"><div><strong>Olmsted syndrome, X-linked</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>813075</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3806745</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">X-linked Olmsted syndrome (OLMSX) is a rare keratinization disorder characterized by the combination of periorificial keratotic plaques and bilateral palmoplantar transgredient keratoderma. Other clinical manifestations include diffuse alopecia, leukokeratosis of the oral mucosa, onychodystrophy, hyperkeratotic linear streaks, follicular keratosis, and constriction of the digits (summary by Yaghoobi et al., 2007).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of Olmsted disease, see OLMS1 (614594).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/813075">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_815206"><div><strong>Corneal intraepithelial dyskeratosis-palmoplantar hyperkeratosis-laryngeal dyskeratosis syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>815206</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3808876</a></dd><dt><span class="dotprefix"></span></dt><dd>Neoplastic Process</dd></dl></div></div></div>
<div class="spaceAbove">Multiple self-healing palmoplantar carcinoma (MSPC) is characterized by recurrent keratoacanthomas in palmoplantar skin as well as in conjunctival and corneal epithelia. In addition, patients experience a high susceptibility to malignant squamous cell carcinoma (summary by Zhong et al., 2016).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/815206">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_816049"><div><strong>Severe dermatitis-multiple allergies-metabolic wasting syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>816049</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3809719</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A rare genetic epidermal disorder with characteristics of congenital erythroderma with severe psoriasiform dermatitis, ichthyosis, severe palmoplantar keratoderma, yellow keratosis on the hands and feet, elevated immunoglobulin E, multiple food allergies, and metabolic wasting. Other variable features may include hypotrichosis, nail dystrophy, recurrent infections, mild global developmental delay, eosinophilia, nystagmus, growth impairment and cardiac defects.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/816049">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_816111"><div><strong>Hypopigmentation-punctate palmoplantar keratoderma syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>816111</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3809781</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Cole disease (COLED) is a rare autosomal dominant disorder characterized by congenital or early-onset punctate keratoderma associated with irregularly shaped hypopigmented macules, which are typically found over the arms and legs but not the trunk or acral regions. Skin biopsies of palmoplantar lesions show nonspecific changes including hyperorthokeratosis, hypergranulosis, and acanthosis. Hypopigmented areas of skin, however, reveal a reduction in melanin content in keratinocytes but not in melanocytes, as well as hyperkeratosis and a normal number of melanocytes. Ultrastructurally, melanocytes show a disproportionately large number of melanosomes in the cytoplasm and dendrites, whereas keratinocytes show a paucity of these organelles, suggestive of impaired melanosome transfer (summary by Eytan et al., 2013). Some patients also exhibit calcinosis cutis or early-onset calcific tendinopathy (Eytan et al., 2013).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/816111">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_816724"><div><strong>Palmoplantar keratoderma, nonepidermolytic, focal or diffuse</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>816724</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3810394</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Pachyonychia congenita (PC) is characterized by hypertrophic nail dystrophy, painful palmoplantar keratoderma and blistering, oral leukokeratosis, pilosebaceous cysts (including steatocystoma and vellus hair cysts), palmoplantar hyperhydrosis, and follicular keratoses on the trunk and extremities.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/816724">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_854384"><div><strong>Keratosis follicularis spinulosa decalvans, X-linked</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>854384</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3887525</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Keratosis follicularis spinulosa decalvans is an uncommon genodermatosis chiefly characterized by widespread keratosis pilaris, progressive cicatricial alopecia of the scalp, eyebrows, and eyelashes, and an excess of affected males. Photophobia, blepharitis/conjunctivitis, and corneal dystrophy are characteristic ancillary findings. It is most often inherited as an X-linked trait (summary by Castori et al., 2009).&#13; Autosomal dominant inheritance has also been reported (KFSD; 612843).&#13; The term 'cum ophiasi' means 'with ophiasis,' i.e., baldness in 1 or more winding streaks about the head, which comes from the Greek for snake. Decalvans refers to the loss of hair.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/854384">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_854762"><div><strong>Autosomal recessive congenital ichthyosis 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>854762</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3888093</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive congenital ichthyosis (ARCI) is a heterogeneous group of disorders of keratinization characterized primarily by abnormal skin scaling over the whole body. These disorders are limited to skin, with approximately two-thirds of patients presenting severe symptoms. The main skin phenotypes are lamellar ichthyosis (LI) and nonbullous congenital ichthyosiform erythroderma (NCIE), although phenotypic overlap within the same patient or among patients from the same family can occur (summary by Fischer, 2009). Neither histopathologic findings nor ultrastructural features clearly distinguish between NCIE and LI. In addition, mutations in several genes have been shown to cause both lamellar and nonbullous ichthyosiform erythrodermal phenotypes (Akiyama et al., 2003). At the First Ichthyosis Consensus Conference in Soreze in 2009, the term 'autosomal recessive congenital ichthyosis' (ARCI) was designated to encompass LI, NCIE, and harlequin ichthyosis (ARCI4B; 242500) (Oji et al., 2010).&#13; NCIE is characterized by prominent erythroderma and fine white, superficial, semiadherent scales. Most patients present with collodion membrane at birth and have palmoplantar keratoderma, often with painful fissures, digital contractures, and loss of pulp volume. In half of the cases, a nail dystrophy including ridging, subungual hyperkeratosis, or hypoplasia has been described. Ectropion, eclabium, scalp involvement, and loss of eyebrows and lashes seem to be more frequent in NCIE than in lamellar ichthyosis (summary by Fischer et al., 2000). In LI, the scales are large, adherent, dark, and pigmented with no skin erythema. Overlapping phenotypes may depend on the age of the patient and the region of the body. The terminal differentiation of the epidermis is perturbed in both forms, leading to a reduced barrier function and defects of lipid composition in the stratum corneum (summary by Lefevre et al., 2006).&#13; In later life, the skin in ARCI may have scales that cover the entire body surface, including the flexural folds, and the scales are highly variable in size and color. Erythema may be very mild and almost invisible. Some affected persons exhibit scarring alopecia, and many have secondary anhidrosis (summary by Eckl et al., 2005).&#13; For a discussion of genetic heterogeneity of autosomal recessive congenital ichthyosis, see ARCI1 (242300).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/854762">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_862830"><div><strong>Cardiomyopathy, dilated, with wooly hair, keratoderma, and tooth agenesis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>862830</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4014393</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Keratoderma with woolly hair is a group of related conditions that affect the skin and hair and in many cases increase the risk of potentially life-threatening heart problems. People with these conditions have hair that is unusually coarse, dry, fine, and tightly curled. In some cases, the hair is also sparse. The woolly hair texture typically affects only scalp hair and is present from birth. Starting early in life, affected individuals also develop palmoplantar keratoderma, a condition that causes skin on the palms of the hands and the soles of the feet to become thick, scaly, and calloused.\n\nCardiomyopathy, which is a disease of the heart muscle, is a life-threatening health problem that can develop in people with keratoderma with woolly hair. Unlike the other features of this condition, signs and symptoms of cardiomyopathy may not appear until adolescence or later. Complications of cardiomyopathy can include an abnormal heartbeat (arrhythmia), heart failure, and sudden death.\n\nKeratoderma with woolly hair comprises several related conditions with overlapping signs and symptoms. Researchers have recently proposed classifying keratoderma with woolly hair into four types, based on the underlying genetic cause. Type I, also known as Naxos disease, is characterized by palmoplantar keratoderma, woolly hair, and a form of cardiomyopathy called arrhythmogenic right ventricular cardiomyopathy (ARVC). Type II, also known as Carvajal syndrome, has hair and skin abnormalities similar to type I but features a different form of cardiomyopathy, called dilated left ventricular cardiomyopathy. Type III also has signs and symptoms similar to those of type I, including ARVC, although the hair and skin abnormalities are often milder. Type IV is characterized by palmoplantar keratoderma and woolly and sparse hair, as well as abnormal fingernails and toenails. Type IV does not appear to cause cardiomyopathy.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/862830">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_863424"><div><strong>Nail and teeth abnormalities-marginal palmoplantar keratoderma-oral hyperpigmentation syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>863424</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4014987</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A rare genetic ectodermal dysplasia syndrome characterized by short stature, nail dystrophy and/or nail loss, oral mucosa and/or tongue hyperpigmentation, dentition abnormalities (delayed teeth eruption, hypodontia, enamel hypoplasia), keratoderma on the margins of the palms and soles and focal hyperkeratosis on the dorsum of the hands and feet. Additionally, dysphagia with esophageal strictures, sensorineural deafness, bronchial asthma and severe iron-deficiency anemia have also been observed.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/863424">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_863639"><div><strong>Wooly hair-palmoplantar keratoderma syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>863639</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4015202</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Palmoplantar keratoderma and woolly hair (PPKWH) is an autosomal recessive disorder characterized by the presence of these cardinal features and the absence of cardiomyopathy symptoms or findings on echocardiography and electrocardiogram. Palmoplantar keratoderma is of the striate type; hair is generally sparse; and leukonychia is present (Ramot et al., 2014).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/863639">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_895692"><div><strong>Peeling skin syndrome 4</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>895692</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4225407</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Any peeling skin syndrome in which the cause of the disease is a mutation in the CSTA gene.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/895692">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_930338"><div><strong>Autosomal dominant palmoplantar keratoderma and congenital alopecia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>930338</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4304669</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Palmoplantar keratoderma and congenital alopecia-1 (PPKCA1) is a rare autosomal dominant disorder characterized by severe hyperkeratosis and congenital alopecia. Nail changes occur in some patients (summary by Castori et al., 2010).&#13; Also see PPKCA2 (212360), an autosomal recessive disorder characterized by congenital alopecia and progressive hyperkeratosis resulting in sclerodactyly, severe contractures and tapering of the digits, and pseudoainhum formation.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/930338">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1379712"><div><strong>Erythrokeratodermia variabilis et progressiva 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1379712</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4479618</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Erythrokeratodermia variabilis et progressiva-2 (EKVP2) is a genodermatosis characterized by persistent plaque-like or generalized hyperkeratosis and transient red patches of variable size, shape, and location. The severity and dominating features of the disease vary strikingly within families and also during an individual's course of disease. The erythematous component usually prevails in young children, whereas hyperkeratosis is the dominant or sole feature in adults. Some patients with EKVP2 display lesions resembling erythema gyratum repens (summary by Richard et al., 2003). EKVP was previously thought to be separate disorders: erythrokeratodermia variabilis (EKV) and progressive symmetric erythrokeratodermia (PSEK) (van Steensel et al., 2009).&#13; For a discussion of genetic heterogeneity of EKVP, see EKVP1 (133200).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1379712">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1380593"><div><strong>Erythrokeratodermia variabilis et progressiva 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1380593</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4479619</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Erythrokeratodermia variabilis et progressiva is a rare skin disease. Patients with EKVP3 have normal skin at birth but develop hyperpigmentation and scaling at sites of friction in childhood, with progression to near-confluent corrugated hyperkeratosis, palmoplantar keratoderma, and transient figurate erythema (summary by Boyden et al., 2015).&#13; For a discussion of genetic heterogeneity of EKVP, see EKVP1 (133200).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1380593">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1644485"><div><strong>Palmoplantar keratoderma, nonepidermolytic, focal 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1644485</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4552049</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Focal nonepidermolytic palmoplantar keratoderma-1 (FNEPPK1) is an autosomal dominant skin disorder characterized by large, hard, compact, painful masses of keratin that develop at sites of recurrent friction, principally on the feet, though also on the palms and other sites, without evidence of epidermolysis (summary by Kelsell et al., 1995).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1644485">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1678330"><div><strong>Cancer, alopecia, pigment dyscrasia, onychodystrophy, and keratoderma</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1678330</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5193062</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">CAPOK syndrome (CAPOK) is characterized by onset of symptoms in the first year of life, with the development of progressive alopecia, hypo- and hyperpigmented macular skin lesions, palmoplantar keratoderma, and nail dystrophy. Beginning in the third decade of life, patients develop recurrent squamous cell carcinomas. Some patients may have brittle teeth resulting in tooth loss, and multinodular goiter has been observed (Courcet et al., 2015).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1678330">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1680605"><div><strong>Ectodermal dysplasia 15, hypohidrotic/hair type</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1680605</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5193145</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Some ectodermal dysplasias are here classified as congenital disorders characterized by abnormal development in 2 or more ectodermal structures (hair, nails, teeth, and sweat glands) without other systemic findings.&#13; Ectodermal dysplasia-15 (ECTD15) is characterized by hypotrichosis that develops in early childhood and absence of sweating except with extreme exercise. Skin is dry from birth and eczematous lesions may develop in adulthood. Other features include blepharitis and photophobia (van den Bogaard et al., 2019).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1680605">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1778121"><div><strong>Olmsted syndrome 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1778121</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5542829</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Olmsted syndrome-1 (OLMS1) is a rare congenital disorder characterized by bilateral mutilating palmoplantar keratoderma (PPK) and periorificial keratotic plaques with severe pruritus of lesions. Diffuse alopecia, constriction of digits, and onychodystrophy have also been reported. Infections and squamous cell carcinomas can arise on the keratotic areas (summary by Lin et al., 2012). The digital constriction ('pseudoainhum') may progress to autoamputation of fingers and toes (Olmsted, 1927).&#13; Genetic Heterogeneity of Olmsted Syndrome&#13; Olmsted syndrome-2 (OLMS2; 619208) is caused by mutation in the PERP gene (609301) on chromosome 6q23.&#13; An X-linked form of Olmsted syndrome (OLMSX; 300918) is caused by mutation in the MBTPS2 gene (300294) on chromosome Xp22.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1778121">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1779902"><div><strong>Olmsted syndrome 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1779902</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5543096</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Olmsted syndrome-2 (OLMS2) is characterized by mutilating hyperkeratotic skin lesions, primarily on the palms and soles, but also extending onto dorsal surfaces of the hands and feet and distal extremities. The lesions are progressive, becoming thicker with verrucous fissures on the palms and soles over time. In addition, affected individuals exhibit perioral hyperkeratosis, and may have lesions around other orifices as well, such as the nostrils, perineum, and anus. Most patients also have hyperkeratotic nails and light-colored woolly hair (Duchatelet et al., 2019). Some patients may experience flexion contractures of the digits due to the severity of the keratoderma, and intractable pruritus and alopecia universalis have been observed (Dai et al., 2020).&#13; For a general phenotypic description and discussion of genetic heterogeneity of Olmsted disease, see OLMS1 (614594).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1779902">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1824037"><div><strong>Ichthyosis, annular epidermolytic, 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1824037</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5774264</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Annular epidermolytic ichthyosis-2 (AEI2) is characterized by erythema and blistering of skin at birth that improves without scarring, as well as palmoplantar keratoderma. Some patients experience intermittent severe flares of generalized annular and polycyclic erythematous scaling plaques (Sybert et al., 1999; Zaki et al., 2018).&#13; For a discussion of genetic heterogeneity of AEI, see AEI1 (607602).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1824037">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1846123"><div><strong>Epidermolytic hyperkeratosis 2A, autosomal dominant</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1846123</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5882671</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal dominant epidermolytic hyperkeratosis-2A (EHK2A) is a skin disorder characterized by blistering, keratoderma, and erythroderma. Severity and body involvement show clinical heterogeneity (summary by Syder et al., 1994). While the neonatal presentation is often blistering and redness, the primary features of the disorder are hyperkeratosis (thickening of the uppermost layer of the epidermis, the stratum corneum) and blistering (summary by Chipev et al., 1994).&#13; For a discussion of genetic heterogeneity of epidermolytic hyperkeratosis, see EHK1 (113800).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1846123">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1852819"><div><strong>Ichthyosis with erythrokeratoderma</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1852819</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5882691</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Ichthyosis with erythrokeratoderma (IEKD) is an autosomal dominant disorder of cornification characterized by abnormal desquamation in addition to erythematous hyperkeratotic plaques or patches. Lesions are present at birth or appear soon after (Gong et al., 2023; Takeichi et al., 2023).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1852819">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1847702"><div><strong>Arrhythmogenic cardiomyopathy with variable ectodermal abnormalities</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1847702</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5882696</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Arrhythmogenic cardiomyopathy with variable ectodermal abnormalities (ARCME) is characterized by severe dilated cardiomyopathy resulting in death or cardiac transplantation in childhood. Ventricular tachycardia, sustained or nonsustained, has been reported. In addition, some patients exhibit ectodermal manifestations including woolly or wiry hair, dental anomalies, dry skin, and/or dystrophic nails. Cleft lip and palate and corneal abnormalities have also been observed (Robinson et al., 2020; Henry et al., 2022).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1847702">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1845041"><div><strong>Epidermolytic hyperkeratosis 2B, autosomal recessive</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1845041</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5882753</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive epidermolytic hyperkeratosis-2B (EHK2B) is a rare and clinically variable defect of cornification characterized by generalized erythema, erosions, scaling, and easily breaking blisters that become less frequent later in life, while hyperkeratosis increases (summary by Terheyden et al., 2009).&#13; For a discussion of genetic heterogeneity of epidermolytic hyperkeratosis, see EHK1 (113800).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1845041">Condition Record</a></div></div>
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<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1845041" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Epidermolytic hyperkeratosis 2B, autosomal recessive</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1379712" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Erythrokeratodermia variabilis et progressiva 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1380593" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Erythrokeratodermia variabilis et progressiva 3</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_816111" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hypopigmentation-punctate palmoplantar keratoderma syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_326700" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Ichthyosis hystrix of Curth-Macklin</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1852819" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Ichthyosis with erythrokeratoderma</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1824037" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Ichthyosis, annular epidermolytic, 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_355410" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Ichthyosis, hystrix-like, with hearing loss</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_412573" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Keratosis follicularis spinulosa decalvans, autosomal dominant</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_854384" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Keratosis follicularis spinulosa decalvans, X-linked</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_343725" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Keratosis palmoplantaris striata 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_418996" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Keratosis palmoplantaris striata 3</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_82727" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Knuckle pads, deafness AND leukonychia syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_91010" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Naegeli-Franceschetti-Jadassohn syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_863424" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Nail and teeth abnormalities-marginal palmoplantar keratoderma-oral hyperpigmentation syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_321991" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Naxos disease</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1778121" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Olmsted syndrome 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1779902" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Olmsted syndrome 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_813075" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Olmsted syndrome, X-linked</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_811523" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Pachyonychia congenita 3</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_811524" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Pachyonychia congenita 4</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_419717" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Palmoplantar keratoderma i, striate, focal, or diffuse</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1644485" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Palmoplantar keratoderma, nonepidermolytic, focal 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_816724" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Palmoplantar keratoderma, nonepidermolytic, focal or diffuse</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_461281" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Palmoplantar keratoderma-XX sex reversal-predisposition to squamous cell carcinoma syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_895692" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Peeling skin syndrome 4</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_45939" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Pityriasis rubra pilaris</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_388129" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Poikiloderma with neutropenia</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_315656" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Rapp-Hodgkin syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_347366" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">SchC6pf-Schulz-Passarge syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_816049" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Severe dermatitis-multiple allergies-metabolic wasting syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_375148" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Woolly hair-skin fragility syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_863639" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Wooly hair-palmoplantar keratoderma syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_86937" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">X-linked ichthyosis with steryl-sulfatase deficiency</a></div></span></div></div>
</div>
<div class="portlet mgSection" id="ID_105">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Professional_guidelines">Professional guidelines</h1><a sid="105" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">PubMed<a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#guidelinesHelpPM"><img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a></h3>
<div class="nl"><a target="_blank" href="/pubmed/34985526">Treatment of Keratin 16 Palmoplantar Keratoderma With Topical Erlotinib.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lee G,
Lowe PM</span><br />
<span class="medgenPMjournal">JAMA Dermatol</span>
2022 Feb 1;158(2):216-217.
doi: 10.1001/jamadermatol.2021.5302.
<span class="bold">PMID: </span><a href="/pubmed/34985526" target="_blank">34985526</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34657339">Mutations in SAM syndrome and palmoplantar keratoderma patients suggest genotype/phenotype correlations in DSG1 mutations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Takeuchi S,
Takeichi T,
Koike Y,
Takama H,
Tanahashi K,
Okuno Y,
Ishii N,
Muro Y,
Ogi T,
Suga Y,
Akiyama M</span><br />
<span class="medgenPMjournal">J Eur Acad Dermatol Venereol</span>
2022 Mar;36(3):e215-e218.
Epub 2021 Oct 27
doi: 10.1111/jdv.17752.
<span class="bold">PMID: </span><a href="/pubmed/34657339" target="_blank">34657339</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33575348">Nagashima-Type Palmoplantar Keratosis: Clinical Characteristics, Genetic Characterization, and Clinical Management.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Huang C,
Yang Y,
Huang X,
Zhou Z</span><br />
<span class="medgenPMjournal">Biomed Res Int</span>
2021;2021:8841994.
Epub 2021 Jan 27
doi: 10.1155/2021/8841994.
<span class="bold">PMID: </span><a href="/pubmed/33575348" target="_blank">33575348</a><a href="/pmc/articles/PMC7861918" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22palmoplantar%20keratoderma%22%5Btiab%3A~0%5D)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">See all (26)</a></div></div>
</div>
<div class="display-none help-popup" id="guidelinesHelpPM">These guidelines are articles in PubMed that match specific search criteria developed by MedGen to capture the most relevant practice guidelines. This list may not be comprehensive and may include broader topics as well. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div><div class="display-none help-popup" id="guidelinesHelpCurated">These guidelines are manually curated by the MedGen team
to supplement articles available in PubMed. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div>
<div class="portlet mgSection" id="ID_103">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_clinical_studies">Recent clinical studies</h1><a sid="103" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">Etiology</h3>
<div class="nl"><a target="_blank" href="/pubmed/34776086">Clinical and Molecular Aspects of Naxos Disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Protonotarios I,
Asimaki A,
Xylouri Z,
Protonotarios A,
Tsatsopoulou A</span><br />
<span class="medgenPMjournal">Heart Fail Clin</span>
2022 Jan;18(1):89-99.
Epub 2021 Oct 22
doi: 10.1016/j.hfc.2021.07.010.
<span class="bold">PMID: </span><a href="/pubmed/34776086" target="_blank">34776086</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30736994">Cutaneous paraneoplastic syndromes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Wick MR,
Patterson JW</span><br />
<span class="medgenPMjournal">Semin Diagn Pathol</span>
2019 Jul;36(4):211-228.
Epub 2019 Jan 31
doi: 10.1053/j.semdp.2019.01.001.
<span class="bold">PMID: </span><a href="/pubmed/30736994" target="_blank">30736994</a></div>
<div class="nl"><a target="_blank" href="/pubmed/27982550">Desmosomes and corneodesmosomes and their relevance to genetic skin diseases.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ishida-Yamamoto A,
Kishibe M,
Honma M</span><br />
<span class="medgenPMjournal">G Ital Dermatol Venereol</span>
2017 Apr;152(2):148-157.
Epub 2016 Dec 16
doi: 10.23736/S0392-0488.16.05528-0.
<span class="bold">PMID: </span><a href="/pubmed/27982550" target="_blank">27982550</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21855730">Cutaneous paraneoplasia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ramos-E-Silva M,
Carvalho JC,
Carneiro SC</span><br />
<span class="medgenPMjournal">Clin Dermatol</span>
2011 Sep-Oct;29(5):541-7.
doi: 10.1016/j.clindermatol.2010.09.022.
<span class="bold">PMID: </span><a href="/pubmed/21855730" target="_blank">21855730</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15708285">Palmoplantar keratodermas.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Itin PH,
Fistarol SK</span><br />
<span class="medgenPMjournal">Clin Dermatol</span>
2005 Jan-Feb;23(1):15-22.
doi: 10.1016/j.clindermatol.2004.09.005.
<span class="bold">PMID: </span><a href="/pubmed/15708285" target="_blank">15708285</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Palmoplantar%20keratoderma%22%20AND%20Etiology%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (301)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/38055272">Olmsted Syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Huang YY,
Li JH</span><br />
<span class="medgenPMjournal">JAMA Dermatol</span>
2024 Feb 1;160(2):218-219.
doi: 10.1001/jamadermatol.2023.4152.
<span class="bold">PMID: </span><a href="/pubmed/38055272" target="_blank">38055272</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34330664">Keratoderma and dental involvement.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Navarro-Triviño FJ,
Moreno-Higueras M</span><br />
<span class="medgenPMjournal">Rev Clin Esp (Barc)</span>
2022 Jan;222(1):54-55.
Epub 2021 Jul 28
doi: 10.1016/j.rceng.2021.07.001.
<span class="bold">PMID: </span><a href="/pubmed/34330664" target="_blank">34330664</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33054945">Spiny keratoderma.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Corral M,
Paret C,
Iglesias M,
Amores E,
Fernández MT,
Salleras M</span><br />
<span class="medgenPMjournal">Dermatol Online J</span>
2020 Sep 15;26(9)
<span class="bold">PMID: </span><a href="/pubmed/33054945" target="_blank">33054945</a></div>
<div class="nl"><a target="_blank" href="/pubmed/17298101">Acquired palmoplantar keratoderma.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Patel S,
Zirwas M,
English JC 3rd</span><br />
<span class="medgenPMjournal">Am J Clin Dermatol</span>
2007;8(1):1-11.
doi: 10.2165/00128071-200708010-00001.
<span class="bold">PMID: </span><a href="/pubmed/17298101" target="_blank">17298101</a></div>
<div class="nl"><a target="_blank" href="/pubmed/8961592">Acrokeratoelastoidosis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Dyall-Smith D</span><br />
<span class="medgenPMjournal">Australas J Dermatol</span>
1996 Nov;37(4):213-4.
doi: 10.1111/j.1440-0960.1996.tb01058.x.
<span class="bold">PMID: </span><a href="/pubmed/8961592" target="_blank">8961592</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Palmoplantar%20keratoderma%22%20AND%20Diagnosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (714)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/37982470">Painful Palmoplantar Lesions Following Vaccination: Answer.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ceravalls J,
Arandes-Marcocci J,
Pérez-Muñoz N,
Fernández-Figueras MT,
Amores-Martin E</span><br />
<span class="medgenPMjournal">Am J Dermatopathol</span>
2023 Dec 1;45(12):857-858.
doi: 10.1097/DAD.0000000000002521.
<span class="bold">PMID: </span><a href="/pubmed/37982470" target="_blank">37982470</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29302927">A Review on Pityriasis Rubra Pilaris.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Wang D,
Chong VC,
Chong WS,
Oon HH</span><br />
<span class="medgenPMjournal">Am J Clin Dermatol</span>
2018 Jun;19(3):377-390.
doi: 10.1007/s40257-017-0338-1.
<span class="bold">PMID: </span><a href="/pubmed/29302927" target="_blank">29302927</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28952335">Acitretin Use in Dermatology.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Guenther LC,
Kunynetz R,
Lynde CW,
Sibbald RG,
Toole J,
Vender R,
Zip C</span><br />
<span class="medgenPMjournal">J Cutan Med Surg</span>
2017 Nov/Dec;21(3_suppl):2S-12S.
Epub 2017 Sep 27
doi: 10.1177/1203475417733414.
<span class="bold">PMID: </span><a href="/pubmed/28952335" target="_blank">28952335</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24725039">Pitted keratolysis: a clinical review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bristow IR,
Lee YL</span><br />
<span class="medgenPMjournal">J Am Podiatr Med Assoc</span>
2014 Mar;104(2):177-82.
doi: 10.7547/0003-0538-104.2.177.
<span class="bold">PMID: </span><a href="/pubmed/24725039" target="_blank">24725039</a></div>
<div class="nl"><a target="_blank" href="/pubmed/22128881">Aquagenic syringeal acrokeratoderma.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Darlenski R,
Tsankov N</span><br />
<span class="medgenPMjournal">J Dtsch Dermatol Ges</span>
2012 Mar;10(3):198.
Epub 2011 Nov 30
doi: 10.1111/j.1610-0387.2011.07862.x.
<span class="bold">PMID: </span><a href="/pubmed/22128881" target="_blank">22128881</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Palmoplantar%20keratoderma%22%20AND%20Therapy%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (341)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/35882021">Aquagenic keratoderma.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Marín-Hernández E,
García-Alonso MJ,
Cruz-Flores ED,
Flores-Salgado M</span><br />
<span class="medgenPMjournal">Bol Med Hosp Infant Mex</span>
2022;79(3):193-198.
doi: 10.24875/BMHIM.21000084.
<span class="bold">PMID: </span><a href="/pubmed/35882021" target="_blank">35882021</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29302927">A Review on Pityriasis Rubra Pilaris.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Wang D,
Chong VC,
Chong WS,
Oon HH</span><br />
<span class="medgenPMjournal">Am J Clin Dermatol</span>
2018 Jun;19(3):377-390.
doi: 10.1007/s40257-017-0338-1.
<span class="bold">PMID: </span><a href="/pubmed/29302927" target="_blank">29302927</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21855730">Cutaneous paraneoplasia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ramos-E-Silva M,
Carvalho JC,
Carneiro SC</span><br />
<span class="medgenPMjournal">Clin Dermatol</span>
2011 Sep-Oct;29(5):541-7.
doi: 10.1016/j.clindermatol.2010.09.022.
<span class="bold">PMID: </span><a href="/pubmed/21855730" target="_blank">21855730</a></div>
<div class="nl"><a target="_blank" href="/pubmed/16816500">Naxos disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Adhisivam B,
Mahadevan S</span><br />
<span class="medgenPMjournal">Indian J Pediatr</span>
2006 Apr;73(4):359-60.
doi: 10.1007/BF02825834.
<span class="bold">PMID: </span><a href="/pubmed/16816500" target="_blank">16816500</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15708285">Palmoplantar keratodermas.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Itin PH,
Fistarol SK</span><br />
<span class="medgenPMjournal">Clin Dermatol</span>
2005 Jan-Feb;23(1):15-22.
doi: 10.1016/j.clindermatol.2004.09.005.
<span class="bold">PMID: </span><a href="/pubmed/15708285" target="_blank">15708285</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Palmoplantar%20keratoderma%22%20AND%20Prognosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (221)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/35882021">Aquagenic keratoderma.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Marín-Hernández E,
García-Alonso MJ,
Cruz-Flores ED,
Flores-Salgado M</span><br />
<span class="medgenPMjournal">Bol Med Hosp Infant Mex</span>
2022;79(3):193-198.
doi: 10.24875/BMHIM.21000084.
<span class="bold">PMID: </span><a href="/pubmed/35882021" target="_blank">35882021</a></div>
<div class="nl"><a target="_blank" href="/pubmed/16714203">Personal observation of skin disorders in malnutrition.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lee BY,
Hogan DJ,
Ursine S,
Yanamandra K,
Bocchini JA</span><br />
<span class="medgenPMjournal">Clin Dermatol</span>
2006 May-Jun;24(3):222-7.
doi: 10.1016/j.clindermatol.2005.11.002.
<span class="bold">PMID: </span><a href="/pubmed/16714203" target="_blank">16714203</a></div>
<div class="nl"><a target="_blank" href="/pubmed/16250208">Mouse models in preclinical studies for pachyonychia congenita.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Chen J,
Roop DR</span><br />
<span class="medgenPMjournal">J Investig Dermatol Symp Proc</span>
2005 Oct;10(1):37-46.
doi: 10.1111/j.1087-0024.2005.10206.x.
<span class="bold">PMID: </span><a href="/pubmed/16250208" target="_blank">16250208</a></div>
<div class="nl"><a target="_blank" href="/pubmed/11401671">Olmsted syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Fonseca E,
Peña C,
Del Pozo J,
Almagro M,
Yebra MT,
Cuevas J,
Contreras F</span><br />
<span class="medgenPMjournal">J Cutan Pathol</span>
2001 May;28(5):271-5.
doi: 10.1034/j.1600-0560.2001.028005271.x.
<span class="bold">PMID: </span><a href="/pubmed/11401671" target="_blank">11401671</a></div>
<div class="nl"><a target="_blank" href="/pubmed/154478">Papillon-Lefevre syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Verma KC,
Chaddha MK,
Joshi RK</span><br />
<span class="medgenPMjournal">Int J Dermatol</span>
1979 Mar;18(2):146-9.
doi: 10.1111/j.1365-4362.1979.tb04493.x.
<span class="bold">PMID: </span><a href="/pubmed/154478" target="_blank">154478</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Palmoplantar%20keratoderma%22%20AND%20Clinical%20prediction%20guides%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (311)</a></div></div>
</div>
<div class="portlet mgSection" id="ID_104">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_systematic_reviews">Recent systematic reviews</h1><a sid="104" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">
<div class="nl"><a target="_blank" href="/pubmed/37705065">Is punctate palmoplantar keratoderma type 1 associated with malignancy? A systematic review of the literature.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Gram SB,
Bjerrelund J,
Jelsig AM,
Bygum A,
Leboeuf-Yde C,
Ousager LB</span><br />
<span class="medgenPMjournal">Orphanet J Rare Dis</span>
2023 Sep 13;18(1):290.
doi: 10.1186/s13023-023-02862-8.
<span class="bold">PMID: </span><a href="/pubmed/37705065" target="_blank">37705065</a><a href="/pmc/articles/PMC10500882" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33779326">Drugs Associated With the Development of Palmoplantar Keratoderma: A Systematic Review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Mirali S,
Abduelmula A,
Mufti A,
Sachdeva M,
Yeung J</span><br />
<span class="medgenPMjournal">J Cutan Med Surg</span>
2021 Sep;25(5):553-554.
Epub 2021 Mar 28
doi: 10.1177/12034754211004560.
<span class="bold">PMID: </span><a href="/pubmed/33779326" target="_blank">33779326</a><a href="/pmc/articles/PMC8474319" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31846220">Loricrin downregulation and epithelial-related disorders: a systematic review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Catunda R,
Rekhi U,
Clark D,
Levin L,
Febbraio M</span><br />
<span class="medgenPMjournal">J Dtsch Dermatol Ges</span>
2019 Dec;17(12):1227-1238.
Epub 2019 Dec 17
doi: 10.1111/ddg.14001.
<span class="bold">PMID: </span><a href="/pubmed/31846220" target="_blank">31846220</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31074523">A systematic review of reported cases of pachyonychia congenita tarda.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tatiane A,
Slape D,
Lawless R,
Frew JW</span><br />
<span class="medgenPMjournal">Clin Exp Dermatol</span>
2019 Aug;44(6):606-612.
Epub 2019 May 10
doi: 10.1111/ced.13980.
<span class="bold">PMID: </span><a href="/pubmed/31074523" target="_blank">31074523</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26399581">Combination of palmoplantar keratoderma and hair shaft anomalies, the warning signal of severe arrhythmogenic cardiomyopathy: a systematic review on genetic desmosomal diseases.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Polivka L,
Bodemer C,
Hadj-Rabia S</span><br />
<span class="medgenPMjournal">J Med Genet</span>
2016 May;53(5):289-95.
Epub 2015 Sep 23
doi: 10.1136/jmedgenet-2015-103403.
<span class="bold">PMID: </span><a href="/pubmed/26399581" target="_blank">26399581</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Palmoplantar%20keratoderma%22%20AND%20systematic%5Bsb%5D%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (8)</a></div></div>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Table_of_contents">Table of contents</h1><a sid="113" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul id="my-toc"></ul></div>
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<div class="portlet_content ln"><ul><li><a href="/gtr/tests?term=C4551675%5bDISCUI%5d&amp;filter=method%3A2%5F8" target="_blank">Deletion/duplication analysis (33)</a></li>
<li><a href="/gtr/tests?term=C4551675%5bDISCUI%5d&amp;filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (33)</a></li>
<li class="portletSeeAll portletSeeAllPad"><total><a href="/gtr/tests?term=C4551675%5bDISCUI%5d" target="_blank">See all (33)</a></total></li>
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<div class="portlet_content ln"><ul><li><a href="https://clinicaltrials.gov/search?cond=Palmoplantar%20keratoderma" target="_blank">ClinicalTrials.gov</a></li></ul></div>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Practice_guidelines">Practice guidelines</h1><a sid="121" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul class="a_poppers"><li><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22palmoplantar%20keratoderma%22%5Btiab%3A~0%5D)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">PubMed</a><div class="help-popup">See practice and clinical guidelines in PubMed. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li></ul></div>
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<div class="portlet_content ln"><ul><li><a href="https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v:project=medlineplus&amp;query=Palmoplantar%20keratoderma" target="_blank">MedlinePlus</a></li></ul></div>
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<h3>Reviews</h3>
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<a href="/pubmed/clinical?term=Palmoplantar%20keratoderma" ref="ncbi_uid=&amp;discoId=gtr_reviews&amp;linkpos=1&amp;linkpostotal=2" target="_blank">PubMed Clinical Queries</a>
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<a href="/pubmed?term=Palmoplantar%20keratoderma%20AND%20humans[mesh]%20AND%20review[publication%20type]" ref="ncbi_uid=&amp;discoId=gtr_reviews&amp;linkpos=2&amp;linkpostotal=2" target="_blank">Reviews in PubMed</a>
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<h3>Related information</h3>
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<div class="brieflinkpop offscreen_noflow">Related medical variations</div>
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<a class="brieflinkpopperctrl" href="/gtr/tests?term=C4551675[DISCUI]" ref="log$=recordlinks">GTR</a>
<div class="brieflinkpop offscreen_noflow">Related information in GTR</div>
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<a class="brieflinkpopperctrl" href="/gtr/tests?term=C4551675[DISCUI]&amp;test_type=Clinical" ref="log$=recordlinks">GTR(Clinical)</a>
<div class="brieflinkpop offscreen_noflow">Clinical tests in GTR</div>
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<a class="brieflinkpopperctrl" href="/mesh?LinkName=medgen_mesh&amp;from_uid=1635750" ref="log$=recordlinks">MeSH</a>
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