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<meta name="keywords" content="C1837098, easy fatigability, finding, tired easily, 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="Increased susceptibility to fatigue." /><meta name="robots" content="index,nofollow,noarchive" />
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<!--
UID=373253
ConceptID=C1837098
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Easy fatigability</div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>373253</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.">C1837098</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonym:</td>
<td>Tired easily</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:0003388">HP:0003388</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">Increased susceptibility to fatigue. [from <a title="Human Phenotype Ontology" href="http://www.human-phenotype-ontology.org" class="defSource" target="_blank">HPO</a>]</div>
</div>
<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=C1837098[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=373253">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 unavailable" title="ClinVar">V</span></span><span class="TLline">Easy fatigability</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/105425" ref="tree=MeSH" title="MedGen record for Abnormality of the nervous system">Abnormality of the nervous system</a></span><ul><li><span class="TLline"><a href="/medgen/868417" ref="tree=MeSH" title="MedGen record for Abnormal nervous system physiology">Abnormal nervous system physiology</a></span><ul><li><span class="matched_ds">Easy fatigability</span></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_4268"><div><strong>Diaphyseal dysplasia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>4268</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.">C0011989</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Camurati-Engelmann disease (CED) is characterized by hyperostosis of the long bones and the skull, proximal muscle weakness, limb pain, a wide-based, waddling gait, and joint contractures. Facial features such as macrocephaly, frontal bossing, enlargement of the mandible, proptosis, and cranial nerve impingement resulting in facial palsy are seen in severely affected individuals later in life.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/4268">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_5342"><div><strong>Glycogen storage disease, type VII</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>5342</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.">C0017926</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Glycogen storage disease VII is an autosomal recessive metabolic disorder characterized clinically by exercise intolerance, muscle cramping, exertional myopathy, and compensated hemolysis. Myoglobinuria may also occur. The deficiency of the muscle isoform of PFK results in a total and partial loss of muscle and red cell PFK activity, respectively. Raben and Sherman (1995) noted that not all patients with GSD VII seek medical care because in some cases it is a relatively mild disorder.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/5342">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_332193"><div><strong>Autosomal recessive limb-girdle muscular dystrophy type 2K</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>332193</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.">C1836373</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Limb-girdle muscular dystrophies resulting from defective glycosylation of alpha-dystroglycan (DAG1; 128239) represent the mildest end of the phenotypic spectrum of muscular dystrophies collectively known as dystroglycanopathies. The limb-girdle phenotype is characterized by onset of muscular weakness apparent after ambulation is achieved; impaired intellectual development and mild brain anomalies are variable (Balci et al., 2005; review by Godfrey et al., 2007). The most severe end of the phenotypic spectrum of dystroglycanopathies is represented by congenital muscular dystrophy-dystroglycanopathy with brain and eye anomalies (type A; see MDDGA1, 236670), previously designated Walker-Warburg syndrome (WWS) or muscle-eye-brain disease (MEB), and the intermediate range of the spectrum is represented by congenital muscular dystrophy-dystroglycanopathy with or without impaired intellectual development (type B; see MDDGB1, 613155).&#13; Genetic Heterogeneity of Limb-Girdle Muscular Dystrophy-Dystroglycanopathy (Type C)&#13; Limb-girdle muscular dystrophy due to defective glycosylation of DAG1 is genetically heterogeneous. See also MDDGC2 (613158), caused by mutation in the POMT2 gene (607439); MDDGC3 (613157), caused by mutation in the POMGNT1 gene (606822); MDDGC4 (611588), caused by mutation in the FKTN gene (607440); MDDGC5 (607155), caused by mutation in the FKRP gene (606596); MDDGC7 (616052), caused by mutation in the ISPD gene (CRPPA; 614631); MDDGC8 (618135), caused by mutation in the POMGNT2 gene (614828); MDDGC9 (613818) caused by mutation in the DAG1 gene (128239); MDDGC12 (616094), caused by mutation in the POMK gene (615247); MDDGC14 (615352) caused by mutation in the GMPPB gene (615320); and MDDGC15 (612937), caused by mutation in the DPM3 gene (605951).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/332193">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_373251"><div><strong>Congenital myasthenic syndrome 4C</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>373251</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.">C1837091</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Congenital myasthenic syndrome associated with AChR deficiency is a disorder of the postsynaptic neuromuscular junction (NMJ) clinically characterized by early-onset muscle weakness with variable severity. Electrophysiologic studies show low amplitude of the miniature endplate potential (MEPP) and current (MEPC) resulting from deficiency of AChR at the endplate. Patients with mutations in the CHRNE gene may have compensatory increased expression of the fetal subunit CHRNG (100730) and may respond to treatment with cholinergic agents, pyridostigmine, or amifampridine (summary by Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/373251">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_342534"><div><strong>Nemaline myopathy 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>342534</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.">C1850569</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Nemaline myopathy-2 (NEM2) is an autosomal recessive skeletal muscle disorder with a wide range of severity. The most common clinical presentation is early-onset (in infancy or childhood) muscle weakness predominantly affecting proximal limb muscles. Muscle biopsy shows accumulation of Z-disc and thin filament proteins into aggregates named 'nemaline bodies' or 'nemaline rods,' usually accompanied by disorganization of the muscle Z discs. The clinical and histologic spectrum of entities caused by variants in the NEB gene is a continuum, ranging in severity. The distribution of weakness can vary from generalized muscle weakness, more pronounced in proximal limb muscles, to distal-only involvement, although neck flexor weakness appears to be rather consistent. Histologic patterns range from a severe usually nondystrophic disturbance of the myofibrillar pattern to an almost normal pattern, with or without nemaline bodies, sometimes combined with cores (summary by Lehtokari et al., 2014).&#13; Genetic Heterogeneity of Nemaline Myopathy&#13; See also NEM1 (255310), caused by mutation in the tropomyosin-3 gene (TPM3; 191030) on chromosome 1q21; NEM3 (161800), caused by mutation in the alpha-actin-1 gene (ACTA1; 102610) on chromosome 1q42; NEM4 (609285), caused by mutation in the beta-tropomyosin gene (TPM2; 190990) on chromosome 9p13; NEM5A (605355), also known as Amish nemaline myopathy, NEM5B (620386), and NEM5C (620389), all caused by mutation in the troponin T1 gene (TNNT1; 191041) on chromosome 19q13; NEM6 (609273), caused by mutation in the KBTBD13 gene (613727) on chromosome 15q22; NEM7 (610687), caused by mutation in the cofilin-2 gene (CFL2; 601443) on chromosome 14q13; NEM8 (615348), caused by mutation in the KLHL40 gene (615340), on chromosome 3p22; NEM9 (615731), caused by mutation in the KLHL41 gene (607701) on chromosome 2q31; NEM10 (616165), caused by mutation in the LMOD3 gene (616112) on chromosome 3p14; and NEM11 (617336), caused by mutation in the MYPN gene (608517) on chromosome 10q21. Several of the genes encode components of skeletal muscle sarcomeric thin filaments (Sanoudou and Beggs, 2001).&#13; Mutations in the NEB gene are the most common cause of nemaline myopathy (Lehtokari et al., 2006).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/342534">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_342573"><div><strong>Hereditary myopathy with lactic acidosis due to ISCU deficiency</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>342573</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.">C1850718</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Hereditary myopathy with lactic acidosis (HML) is an autosomal recessive muscular disorder characterized by childhood onset of exercise intolerance with muscle tenderness, cramping, dyspnea, and palpitations. Biochemical features include lactic acidosis and, rarely, rhabdomyolysis. It is a chronic disorder with remission and exacerbation of the muscle phenotype (summary by Sanaker et al., 2010).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/342573">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_376880"><div><strong>Congenital myasthenic syndrome 10</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>376880</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.">C1850792</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Congenital myasthenic syndromes (CMS) are a group of inherited disorders affecting the neuromuscular junction (NMJ). Patients present clinically with onset of variable muscle weakness between infancy and adulthood. These disorders have been classified according to the location of the defect: presynaptic, synaptic, and postsynaptic. CMS10 is an autosomal recessive CMS resulting from a postsynaptic defect affecting endplate maintenance of the NMJ. Patients present with limb-girdle weakness in the first decade. Treatment with ephedrine or salbutamol may be beneficial; cholinesterase inhibitors should be avoided (summary by Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/376880">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_339913"><div><strong>Neutral lipid storage myopathy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>339913</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.">C1853136</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Neutral lipid storage disease with myopathy (NLSDM) is an autosomal recessive muscle disorder characterized by adult onset of slowly progressive proximal muscle weakness affecting the upper and lower limbs and associated with increased serum creatine kinase; distal muscle weakness may also occur. About half of patients develop cardiomyopathy later in the disease course. Other variable features include diabetes mellitus, hepatic steatosis, hypertriglyceridemia, and possibly sensorineural hearing loss. Leukocytes and muscle cells show cytoplasmic accumulation of triglycerides (summary by Reilich et al., 2011).&#13; Neutral lipid storage disease with myopathy belongs to a group of disorders termed neutral lipid storage disorders (NLSDs). These disorders are characterized by the presence of triglyceride-containing cytoplasmic droplets in leukocytes and in other tissues, including bone marrow, skin, and muscle. Chanarin-Dorfman syndrome (CDS; 275630) is defined as NLSD with ichthyosis (NLSDI). Patients with NLSDM present with myopathy but without ichthyosis (summary by Fischer et al., 2007).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/339913">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_395228"><div><strong>Sengers syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>395228</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.">C1859317</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Sengers syndrome is an autosomal recessive mitochondrial disorder characterized by congenital cataracts, hypertrophic cardiomyopathy, skeletal myopathy, exercise intolerance, and lactic acidosis. Mental development is normal, but affected individuals may die early from cardiomyopathy (summary by Mayr et al., 2012). Skeletal muscle biopsies of 2 affected individuals showed severe mtDNA depletion (Calvo et al., 2012).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/395228">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_400481"><div><strong>Congenital myasthenic syndrome 5</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>400481</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.">C1864233</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Congenital myasthenic syndromes (CMS) are a group of inherited disorders affecting the neuromuscular junction. Patients present clinically with onset of variable muscle weakness between infancy and adulthood. These disorders have been classified according to the location of the defect: presynaptic, synaptic, and postsynaptic. Endplate acetylcholinesterase deficiency is an autosomal recessive congenital myasthenic syndrome characterized by a defect within the synapse at the neuromuscular junction (NMJ). Mutations in COLQ result in a deficiency of acetylcholinesterase (AChE), which causes prolonged synaptic currents and action potentials due to extended residence of acetylcholine in the synaptic space. Treatment with ephedrine may be beneficial; AChE inhibitors and amifampridine should be avoided (summary by Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/400481">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_414119"><div><strong>Myofibrillar myopathy 6</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>414119</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.">C2751831</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Myofibrillar myopathy-6 (MFM6) is an autosomal dominant severe neuromuscular disorder characterized by onset in the first decade of progressive generalized and proximal muscle weakness, respiratory insufficiency, cardiomyopathy, and skeletal deformities related to muscle weakness. Most patients also have a motor or sensorimotor axonal peripheral neuropathy. Muscle biopsy shows fiber-type grouping, disruption of the Z lines, rimmed vacuoles, and filamentous inclusions, consistent with a myofibrillar myopathy. The disorder may cause severe disability by the second decade, leading to cardiac transplant, ventilation, and/or loss of ambulation (summary by Jaffer et al., 2012).&#13; For a phenotypic description and a discussion of genetic heterogeneity of myofibrillar myopathy (MFM), see MFM1 (601419).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/414119">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_461969"><div><strong>Neuronopathy, distal hereditary motor, type 2C</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>461969</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.">C3150619</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Distal hereditary motor neuropathy, type II is a progressive disorder that affects nerve cells (neurons) in the brain and spinal cord. This condition specifically affects motor neurons, which are specialized cells that control muscle movement. Damage to motor neurons results in muscle weakness that worsens over time. Distal hereditary motor neuropathy, type II weakness primarily affects movement in the legs.\n\nThe signs and symptoms of distal hereditary motor neuropathy, type II often begin in adolescence to mid-adulthood. The initial symptoms of the disorder are cramps or weakness in the muscles of the big toe and, later, the entire foot. During the next 5 to 10 years, affected individuals experience a gradual loss of muscle tissue (atrophy) in the lower legs, which can lead to problems with walking (gait disturbance) and high arches (pes cavus). Over time, the lower legs may become paralyzed. The thigh muscles may also undergo muscle atrophy, although this generally occurs later and is less severe than the muscle atrophy in the lower legs.\n\nSome individuals with distal hereditary motor neuropathy, type II can also experience weaken the muscles in the hands and forearms. This weakening is less severe than the weakening in the lower limbs and does not usually lead to paralysis. In rare cases, affected individuals experience hearing loss.\n\nPeople with distal hereditary motor neuropathy, type II can have exaggerated reflexes (hyperreflexia) or other minor disturbances in the nerves used to detect sensations (sensory neuropathy). Sensory neuropathy is uncommon in people with distal hereditary motor neuropathy, type II and is typically a feature of a disorder calledCharcot-Marie-Tooth disease. These two disorders have overlapping features and can also share a genetic</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/461969">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_481742"><div><strong>Congenital myasthenic syndrome 16</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>481742</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.">C3280112</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Congenital myasthenic syndrome is a disorder characterized by variable degrees of muscle fatigability caused by impaired transmission of electrical signals at the neuromuscular junction (NMJ) (summary by Arnold et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/481742">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_765249"><div><strong>Congenital myasthenic syndrome 12</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>765249</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.">C3552335</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Congenital myasthenic syndrome-12 (CMS12) is an autosomal recessive neuromuscular disorder characterized by onset of proximal muscle weakness in the first decade. EMG classically shows a decremental response to repeated nerve stimulation. Affected individuals show a favorable response to acetylcholinesterase (AChE) inhibitors (summary by Senderek et al., 2011).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/765249">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_767376"><div><strong>Mitochondrial DNA depletion syndrome 11</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>767376</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.">C3554462</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Mitochondrial DNA depletion syndrome-11 is an autosomal recessive mitochondrial disorder characterized by onset in childhood or adulthood of progressive external ophthalmoplegia (PEO), muscle weakness and atrophy, exercise intolerance, and respiratory insufficiency due to muscle weakness. More variable features include spinal deformity, emaciation, and cardiac abnormalities. Skeletal muscle biopsies show deletion and depletion of mitochondrial DNA (mtDNA) with variable defects in respiratory chain enzyme activities (summary by Kornblum et al., 2013).&#13; For a discussion of genetic heterogeneity of autosomal recessive mtDNA depletion syndromes, see MTDPS1 (603041).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/767376">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_815069"><div><strong>Congenital myasthenic syndrome 8</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>815069</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.">C3808739</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Congenital myasthenic syndromes are genetic disorders of the neuromuscular junction (NMJ) that are classified by the site of the transmission defect: presynaptic, synaptic, and postsynaptic. CMS8 is an autosomal recessive disorder characterized by prominent defects of both the pre- and postsynaptic regions. Affected individuals have onset of muscle weakness in early childhood; the severity of the weakness and muscles affected is variable (summary by Maselli et al., 2012).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/815069">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_815773"><div><strong>Mitochondrial DNA depletion syndrome 12B (cardiomyopathic type), autosomal recessive</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>815773</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.">C3809443</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Mitochondrial DNA depletion syndrome-12B is an autosomal recessive mitochondrial disorder characterized by childhood onset of slowly progressive hypertrophic cardiomyopathy and generalized skeletal myopathy resulting in exercise intolerance, and, in some patients, muscle weakness and atrophy. Skeletal muscle biopsy shows ragged-red fibers, mtDNA depletion, and accumulation of abnormal mitochondria (summary by Echaniz-Laguna et al., 2012).&#13; For a discussion of genetic heterogeneity of mtDNA depletion syndromes, see MTDPS1 (603041).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/815773">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_816615"><div><strong>Proximal myopathy with extrapyramidal signs</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>816615</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.">C3810285</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Myopathy with extrapyramidal signs is an autosomal recessive disorder characterized by early childhood onset of proximal muscle weakness and learning disabilities. While the muscle weakness is static, most patients develop progressive extrapyramidal signs that may become disabling (summary by Logan et al., 2014). Brain MRI in 1 patient showed congenital malformations, including polymicrogyria and cerebellar dysplasia (Wilton et al., 2020).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/816615">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_860163"><div><strong>Myopathy, tubular aggregate, 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>860163</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.">C4011726</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Tubular aggregates in muscle, first described by Engel (1964), are structures of variable appearance consisting of an outer tubule containing either one or more microtubule-like structures or amorphous material. They are a nonspecific pathologic finding that may occur in a variety of circumstances, including alcohol- and drug-induced myopathies, exercise-induced cramps or muscle weakness, and inherited myopathies. Tubular aggregates are derived from the sarcoplasmic reticulum (Salviati et al., 1985) and are believed to represent an adaptive mechanism aimed at regulating an increased intracellular level of calcium in order to prevent the muscle fibers from hypercontraction and necrosis (Martin et al., 1997; Muller et al., 2001).&#13; Genetic Heterogeneity of Tubular Aggregate Myopathy&#13; See also TAM2 (615883), caused by mutation in the ORAI1 gene (610277) on chromosome 12q24.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/860163">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_863475"><div><strong>Congenital myasthenic syndrome 7</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>863475</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.">C4015038</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Presynaptic congenital myasthenic syndrome-7A with distal motor neuropathy (CMS7A) is an autosomal dominant neuromuscular disorder characterized by onset of foot deformities, delayed motor development, and slowly progressive distal muscle weakness resulting in gait difficulties in early childhood. Other features may include hyporeflexia, muscle atrophy, and upper limb involvement. Electrophysiologic studies show low compound muscle action potentials (CMAPs), consistent with a distal hereditary motor neuropathy (dHMN), as well as a decremental response to repetitive stimulation, indicating presynaptic defects at the neuromuscular junction (NMJ), consistent with myasthenic syndrome (summary by Fionda et al., 2021). The complex phenotype of patients with dominant SYT2 mutations likely results from impairment of 2 fundamental functions of SYT2: (1) disturbance of calcium-dependent synchronous presynaptic neurotransmitter release, resulting in a myasthenic disorder, and (2) disruption of exocytosis and endocytosis, causing a degenerative process affecting peripheral motor nerve terminals and resulting in a motor neuropathy (Maselli et al., 2021).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).&#13; For a discussion of genetic heterogeneity of dHMN, see 182960.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/863475">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_863738"><div><strong>Autosomal recessive spinocerebellar ataxia 17</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>863738</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.">C4015301</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive spinocerebellar ataxia-17 (SCAR17) is a neurologic disorder characterized by onset of gait ataxia and cerebellar signs in early childhood. Patients also have variably impaired intellectual development (summary by Evers et al., 2016).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/863738">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_864061"><div><strong>Myopathy due to calsequestrin and SERCA1 protein overload</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>864061</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.">C4015624</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Vacuolar myopathy with CASQ1 aggregates is an autosomal dominant mild muscle disorder characterized by adult onset of muscle cramping and weakness as well as increased levels of serum creatine kinase (CK). The disorder is not progressive, and some patients may be asymptomatic (summary by Rossi et al., 2014).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/864061">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_864080"><div><strong>Combined oxidative phosphorylation defect type 24</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>864080</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.">C4015643</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Combined oxidative phosphorylation deficiency-24 (COXPD24) is an autosomal recessive mitochondrial disorder with wide phenotypic variability. Most patients present in infancy with delayed neurodevelopment, refractory seizures, hypotonia, and hearing impairment due to auditory neuropathy. Less common features may include cortical blindness, renal dysfunction, and/or liver involvement, suggestive of Alpers syndrome (MTDPS4A; 203700). Patients with the severe phenotype tend to have brain abnormalities on imaging, including cerebral atrophy and hyperintensities in the basal ganglia and brainstem, consistent with Leigh syndrome. Laboratory values may be normal or show increased lactate and evidence of mitochondrial respiratory chain defects, particularly in muscle. Some patients achieve little developmental milestones and may die in infancy or early childhood. However, some patients have a less severe phenotype manifest only by myopathy (summary by Sofou et al., 2015, Vanlander et al., 2015, and Mizuguchi et al., 2017).&#13; For a discussion of genetic heterogeneity of combined oxidative phosphorylation deficiency, see COXPD1 (609060).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/864080">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_895560"><div><strong>Charcot-Marie-Tooth disease type 4K</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>895560</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.">C4225246</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Charcot-Marie-Tooth disease type 4K (CMT4K) is an autosomal recessive demyelinating peripheral neuropathy characterized by onset in the first decade of distal muscle weakness and atrophy associated with impaired distal sensation. Both upper and lower limbs are affected. Affected individuals may also have nystagmus and late-onset cerebellar ataxia. Laboratory studies show increased serum lactate and isolated mitochondrial complex IV deficiency (summary by Echaniz-Laguna et al., 2013).&#13; For a phenotypic description and a discussion of genetic heterogeneity of autosomal recessive demyelinating Charcot-Marie-Tooth disease, see CMT4A (214400).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/895560">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_902189"><div><strong>Congenital myasthenic syndrome 11</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>902189</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.">C4225367</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Congenital myasthenic syndrome associated with AChR deficiency is a disorder of the postsynaptic neuromuscular junction (NMJ) clinically characterized by early-onset muscle weakness with variable severity. Electrophysiologic studies show low amplitude of the miniature endplate potential (MEPP) and current (MEPC) resulting from deficiency of AChR at the endplate. Treatment with cholinesterase inhibitors or amifampridine may be helpful (summary by Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/902189">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_895641"><div><strong>Congenital myasthenic syndrome 9</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>895641</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.">C4225368</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Congenital myasthenic syndrome associated with AChR deficiency is a disorder of the postsynaptic neuromuscular junction (NMJ) clinically characterized by early-onset muscle weakness with variable severity. Electrophysiologic studies show low amplitude of the miniature endplate potential (MEPP) and current (MEPC) resulting from deficiency of AChR at the endplate. Patients may show a favorable response to amifampridine (summary by Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/895641">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_904424"><div><strong>Congenital myasthenic syndrome 4B</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>904424</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.">C4225369</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Fast-channel congenital myasthenic syndrome (FCCMS) is a disorder of the postsynaptic neuromuscular junction (NMJ) characterized by early-onset progressive muscle weakness. The disorder results from kinetic abnormalities of the AChR channel, specifically from abnormally brief opening and activity of the channel, with a rapid decay in endplate current and a failure to reach the threshold for depolarization. Treatment with pyridostigmine or amifampridine may be helpful; quinine, quinidine, and fluoxetine should be avoided (summary by Sine et al., 2003 and Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/904424">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_909404"><div><strong>Congenital myasthenic syndrome 3B</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>909404</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.">C4225371</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Fast-channel congenital myasthenic syndrome (FCCMS) is a disorder of the postsynaptic neuromuscular junction (NMJ) characterized by early-onset progressive muscle weakness. The disorder results from kinetic abnormalities of the acetylcholine receptor channel, specifically from abnormally brief opening and activity of the channel, with a rapid decay in endplate current and a failure to reach the threshold for depolarization. Treatment with pyridostigmine or amifampridine may be helpful; quinine, quinidine, and fluoxetine should be avoided (summary by Sine et al., 2003 and Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/909404">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_898378"><div><strong>Congenital myasthenic syndrome 3A</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>898378</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.">C4225372</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Slow-channel congenital myasthenic syndrome (SCCMS) is a disorder of the postsynaptic neuromuscular junction (NMJ) characterized by early-onset progressive muscle weakness. The disorder results from kinetic abnormalities of the AChR channel, specifically from prolonged opening and activity of the channel, which causes prolonged synaptic currents resulting in a depolarization block. This is associated with calcium overload, which may contribute to subsequent degeneration of the endplate and postsynaptic membrane. Treatment with quinine, quinidine, or fluoxetine may be helpful; acetylcholinesterase inhibitors and amifampridine should be avoided (summary by Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/898378">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_908185"><div><strong>Congenital myasthenic syndrome 2A</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>908185</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.">C4225374</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Slow-channel congenital myasthenic syndrome (SCCMS) is a disorder of the postsynaptic neuromuscular junction (NMJ) characterized by early-onset progressive muscle weakness. The disorder results from kinetic abnormalities of the acetylcholine receptor channel, specifically from prolonged opening and activity of the channel, which causes prolonged synaptic currents resulting in a depolarization block. This is associated with calcium overload, which may contribute to subsequent degeneration of the endplate and postsynaptic membrane. Treatment with quinine, quinidine, or fluoxetine may be helpful; cholinesterase inhibitors and amifampridine should be avoided (summary by Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/908185">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_909200"><div><strong>Myasthenic syndrome, congenital, 1B, fast-channel</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>909200</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.">C4225405</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Fast-channel congenital myasthenic syndrome (FCCMS) is a disorder of the postsynaptic neuromuscular junction (NMJ) characterized by early-onset progressive muscle weakness. The disorder results from kinetic abnormalities of the acetylcholine receptor (AChR) channel, specifically from abnormally brief opening and activity of the channel, with a rapid decay in endplate current and a failure to reach the threshold for depolarization. Treatment with pyridostigmine or amifampridine may be helpful; quinine, quinidine, and fluoxetine should be avoided (summary by Sine et al., 2003 and Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/909200">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_908188"><div><strong>Congenital myasthenic syndrome 4A</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>908188</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.">C4225413</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Slow-channel congenital myasthenic syndrome (SCCMS) is a disorder of the postsynaptic neuromuscular junction (NMJ) characterized by early-onset progressive muscle weakness. The disorder results from kinetic abnormalities of the acetylcholine receptor channel, specifically from prolonged opening and activity of the channel, which causes prolonged synaptic currents resulting in a depolarization block. This is associated with calcium overload, which may contribute to subsequent degeneration of the endplate and postsynaptic membrane. Treatment with quinine, quinidine, or fluoxetine may be helpful; acetylcholinesterase inhibitors and amifampridine should be avoided (summary by Engel et al., 2015).&#13; For a discussion of genetic heterogeneity of CMS, see CMS1A (601462).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/908188">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_934612"><div><strong>Myofibrillar myopathy 8</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>934612</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.">C4310645</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Myofibrillar myopathy-8 (MFM8) is an autosomal recessive myopathy characterized by slowly progressive proximal muscle weakness and atrophy affecting the upper and lower limbs, resulting in increased falls, gait problems, difficulty running or climbing stairs, and upper limb weakness or scapular winging. Some patients develop distal muscle weakness and atrophy. The phenotype may also be consistent with a clinical diagnosis of limb-girdle muscular dystrophy (LGMD). Age at symptom onset ranges from infancy to adulthood. Ambulation is generally preserved and cardiac involvement is rare, but respiratory compromise with decreased forced vital capacity often occurs. Muscle biopsy shows a mix of myopathic features, including myofibrillar inclusions and sarcomeric disorganization; some patients have been reported to have dystrophic changes on muscle biopsy (O'Grady et al., 2016; Daimaguler et al., 2021). There is significant phenotypic variation, even in patients with the same mutation, which must be taken into account when counseling affecting individuals (Woods et al., 2020).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of myofibrillar myopathy, see MFM1 (601419).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/934612">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_934621"><div><strong>Congenital myasthenic syndrome 21</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>934621</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.">C4310654</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Any congenital myasthenic syndrome in which the cause of the disease is a mutation in the SLC18A3 gene.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/934621">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1616061"><div><strong>Immunodeficiency, developmental delay, and hypohomocysteinemia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1616061</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.">C4540293</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">IMDDHH is a multisystem disorder characterized by immunodeficiency, mildly delayed psychomotor development, poor overall growth from infancy, and hypohomocysteinemia. Additional features, such as congenital heart defects and liver involvement, are more variable (summary by Huppke et al., 2017).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1616061">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1627492"><div><strong>Myopathy, centronuclear, 6, with fiber-type disproportion</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1627492</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.">C4540345</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Centronuclear myopathy-6 with fiber-type disproportion (CNM6) is an autosomal recessive, slowly progressive congenital myopathy with onset in infancy or early childhood. Patients may be hypotonic at birth, but all show delayed motor development and walking difficulties due to muscle weakness mainly affecting the proximal lower and upper limbs. Other features include scapular winging, scoliosis, and mildly decreased respiratory vital capacity. The phenotype and muscle biopsy abnormalities are variable, although centralized nuclei and fiber-type disproportion appear to be a common finding on muscle biopsy (summary by Vasli et al., 2017).&#13; For a discussion of genetic heterogeneity of centronuclear myopathy, see CNM1 (160150).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1627492">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1645741"><div><strong>Autosomal dominant centronuclear myopathy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1645741</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.">C4551952</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Centronuclear myopathy-1 (CNM1) is an autosomal dominant congenital myopathy characterized by slowly progressive muscular weakness and wasting. The disorder involves mainly limb girdle, trunk, and neck muscles but may also affect distal muscles. Weakness may be present during childhood or adolescence or may not become evident until the third decade of life, and some affected individuals become wheelchair-bound in their fifties. Ptosis and limitation of eye movements occur frequently. The most prominent histopathologic features include high frequency of centrally located nuclei in a large number of extrafusal muscle fibers (which is the basis of the name of the disorder), radial arrangement of sarcoplasmic strands around the central nuclei, and predominance and hypotrophy of type 1 fibers (summary by Bitoun et al., 2005).&#13; Genetic Heterogeneity of Centronuclear Myopathy&#13; Centronuclear myopathy is a genetically heterogeneous disorder. See also X-linked CNM (CNMX; 310400), caused by mutation in the MTM1 gene (300415) on chromosome Xq28; CNM2 (255200), caused by mutation in the BIN1 gene (601248) on chromosome 2q14; CNM4 (614807), caused by mutation in the CCDC78 gene (614666) on chromosome 16p13; CNM5 (615959), caused by mutation in the SPEG gene (615950) on chromosome 2q35; and CNM6 (617760), caused by mutation in the ZAK gene (609479) on chromosome 2q31.&#13; The mutation in the MYF6 gene that was reported to cause a form of CNM, formerly designated CNM3, has been reclassified as a variant of unknown significance; see 159991.0001.&#13; Some patients with mutation in the RYR1 gene (180901) have findings of centronuclear myopathy on skeletal muscle biopsy (see 255320).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1645741">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1648332"><div><strong>Osteochondrodysplasia, brachydactyly, and overlapping malformed digits</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1648332</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.">C4748496</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Osteochondrodysplasia, brachydactyly, and overlapping malformed digits (OCBMD) is characterized by bilateral symmetric skeletal defects that primarily affect the limbs. Affected individuals have mild short stature due to shortening of the lower leg bones, as well as hand and foot malformations, predominantly brachydactyly and overlapping digits. Other skeletal defects include scoliosis, dislocated patellae and fibulae, and pectus excavatum (Shabbir et al., 2018).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1648332">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1648392"><div><strong>Myasthenic syndrome, congenital, 23, presynaptic</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1648392</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.">C4748678</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/1648392">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1648451"><div><strong>Mitochondrial complex 1 deficiency, nuclear type 29</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1648451</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.">C4748830</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Mitochondrial complex I deficiency nuclear type 29 (MC1DN29) is an autosomal recessive metabolic disorder that usually presents in childhood, adolescence, or adulthood with exercise intolerance and easy fatigue with myalgias and muscle weakness. However, a severe multisystem presentation with chronic renal failure and cardiomyopathy in infancy has been reported (Sanchez-Caballero et al., 2016; Alston et al., 2016).&#13; For a discussion of genetic heterogeneity of mitochondrial complex I deficiency, see 252010.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1648451">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1667331"><div><strong>Spinocerebellar ataxia, autosomal recessive 23</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1667331</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.">C4750914</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive spinocerebellar ataxia-23 is a neurologic disorder characterized by epilepsy, intellectual disability, and gait ataxia (summary by Gomez-Herreros et al., 2014).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1667331">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1681269"><div><strong>Metabolic crises, recurrent, with variable encephalomyopathic features and neurologic regression</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1681269</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.">C5193083</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Recurrent metabolic crises with variable encephalomyopathic features and neurologic regression (MECREN) is an autosomal recessive metabolic disorder with a highly variable phenotype. Most affected individuals present in the first years of life with episodic lactic acidosis associated with illness or stress, resulting in transient or permanent neurologic dysfunction. Some patients may recover, whereas others show subsequent variable developmental regression of motor and cognitive skills. Other features may include dystonia, hypotonia with inability to sit or walk, seizures, and abnormal signals in the basal ganglia. There is significant phenotypic heterogeneity, even among patients with the same mutation (summary by Almannai et al., 2018).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1681269">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1794157"><div><strong>Myasthenic syndrome, congenital, 7B, presynaptic, autosomal recessive</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1794157</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.">C5561947</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive presynaptic congenital myasthenic syndrome-7B (CMS7B) is characterized by severe generalized muscle weakness apparent from birth; decreased fetal movements may be apparent in utero. Affected infants have generalized hypotonia with poor cry and feeding, head lag, and facial muscle weakness with ptosis. Some patients may have respiratory involvement. Electrophysiologic studies show decreased compound muscle action potentials (CMAPs) and a decremental response to repetitive nerve stimulation. Treatment with 3,4-diaminopyridine and pyridostigmine may result in clinical improvement (summary by Bauche et al., 2020).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1794157">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1802382"><div><strong>Pulmonary hypertension, primary, autosomal recessive</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1802382</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.">C5676877</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Primary pulmonary hypertension-5 (PPH5) is an autosomal recessive disorder characterized by the onset of pulmonary arterial hypertension in infancy, resulting in right heart dysfunction and ultimately right heart failure. Death in early childhood is common (Machado et al., 2022).&#13; For a discussion of genetic heterogeneity of primary pulmonary hypertension, see PPH1 (178600).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1802382">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1824065"><div><strong>Thyroid hormone metabolism, abnormal, 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1824065</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.">C5774292</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Abnormal thyroid hormone metabolism-3 (THMA3) is characterized by euthyroid hyperthyroxinemia, with elevated free T4 and reverse T3 levels, and normal TSH (see 188540) and free T3 levels. Patients also show low plasma selenium levels and reduced levels of stress-related selenoproteins (Schoenmakers et al., 2016; Geslot et al., 2021).&#13; For a discussion of genetic heterogeneity of abnormal thyroid hormone metabolism, see THMA1 (609698).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1824065">Condition Record</a></div></div>
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<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_815069" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Congenital myasthenic syndrome 8</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_895641" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Congenital myasthenic syndrome 9</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_4268" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Diaphyseal dysplasia</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_5342" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Glycogen storage disease, type VII</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_342573" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hereditary myopathy with lactic acidosis due to ISCU deficiency</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1616061" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Immunodeficiency, developmental delay, and hypohomocysteinemia</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1681269" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Metabolic crises, recurrent, with variable encephalomyopathic features and neurologic regression</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1648451" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Mitochondrial complex 1 deficiency, nuclear type 29</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_767376" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Mitochondrial DNA depletion syndrome 11</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_815773" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Mitochondrial DNA depletion syndrome 12B (cardiomyopathic type), autosomal recessive</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_909200" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Myasthenic syndrome, congenital, 1B, fast-channel</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1648392" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Myasthenic syndrome, congenital, 23, presynaptic</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1794157" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Myasthenic syndrome, congenital, 7B, presynaptic, autosomal recessive</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_414119" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Myofibrillar myopathy 6</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_934612" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Myofibrillar myopathy 8</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_864061" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Myopathy due to calsequestrin and SERCA1 protein overload</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1627492" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Myopathy, centronuclear, 6, with fiber-type disproportion</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_860163" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Myopathy, tubular aggregate, 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_342534" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Nemaline myopathy 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_461969" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Neuronopathy, distal hereditary motor, type 2C</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_339913" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Neutral lipid storage myopathy</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1648332" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Osteochondrodysplasia, brachydactyly, and overlapping malformed digits</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_816615" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Proximal myopathy with extrapyramidal signs</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1802382" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Pulmonary hypertension, primary, autosomal recessive</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_395228" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Sengers syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1667331" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Spinocerebellar ataxia, autosomal recessive 23</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1824065" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Thyroid hormone metabolism, abnormal, 3</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/38224966">Glucocorticoid-Induced Myopathy: Typology, Pathogenesis, Diagnosis, and Treatment.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Wu M,
Liu C,
Sun D</span><br />
<span class="medgenPMjournal">Horm Metab Res</span>
2024 May;56(5):341-349.
Epub 2024 Jan 15
doi: 10.1055/a-2246-2900.
<span class="bold">PMID: </span><a href="/pubmed/38224966" target="_blank">38224966</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32013855">Acute Myocarditis in Children: An Overview of Treatment and Recent Patents.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Fung RCM,
Hon KL,
Leung AKC</span><br />
<span class="medgenPMjournal">Recent Pat Inflamm Allergy Drug Discov</span>
2020;14(2):106-116.
doi: 10.2174/1872213X14666200204103714.
<span class="bold">PMID: </span><a href="/pubmed/32013855" target="_blank">32013855</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31255436">Current treatment for citrin deficiency during NICCD and adaptation/compensation stages: Strategy to prevent CTLN2.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Okano Y,
Ohura T,
Sakamoto O,
Inui A</span><br />
<span class="medgenPMjournal">Mol Genet Metab</span>
2019 Jul;127(3):175-183.
Epub 2019 Jun 15
doi: 10.1016/j.ymgme.2019.06.004.
<span class="bold">PMID: </span><a href="/pubmed/31255436" target="_blank">31255436</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22easy%20fatigability%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 (10)</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/37335550">Endoscopic Concurrent Gastrocnemius Muscle Resection and Soleus Muscle Neurectomy for Severe Muscular Calf Hypertrophy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hsu H,
Lee JT</span><br />
<span class="medgenPMjournal">Plast Reconstr Surg</span>
2024 Sep 1;154(3):531-541.
Epub 2023 Jun 19
doi: 10.1097/PRS.0000000000010839.
<span class="bold">PMID: </span><a href="/pubmed/37335550" target="_blank">37335550</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28220607">Neurological and spinal manifestations of the Ehlers-Danlos syndromes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Henderson FC Sr,
Austin C,
Benzel E,
Bolognese P,
Ellenbogen R,
Francomano CA,
Ireton C,
Klinge P,
Koby M,
Long D,
Patel S,
Singman EL,
Voermans NC</span><br />
<span class="medgenPMjournal">Am J Med Genet C Semin Med Genet</span>
2017 Mar;175(1):195-211.
Epub 2017 Feb 21
doi: 10.1002/ajmg.c.31549.
<span class="bold">PMID: </span><a href="/pubmed/28220607" target="_blank">28220607</a></div>
<div class="nl"><a target="_blank" href="/pubmed/22700935">Another 'Cushing ulcer'.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hoshino C,
Satoh N,
Narita M,
Kikuchi A,
Inoue M</span><br />
<span class="medgenPMjournal">BMJ Case Rep</span>
2011 Apr 9;2011
doi: 10.1136/bcr.02.2011.3888.
<span class="bold">PMID: </span><a href="/pubmed/22700935" target="_blank">22700935</a><a href="/pmc/articles/PMC3079451" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21777536">Juvenile dermatomyositis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ishaque S,
Ahmed S,
Ali R,
Minhas K</span><br />
<span class="medgenPMjournal">J Coll Physicians Surg Pak</span>
2011 Jul;21(7):434-6.
<span class="bold">PMID: </span><a href="/pubmed/21777536" target="_blank">21777536</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15924843">Takayasu's arteritis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tahir MH,
Iqbal T,
Raja MK</span><br />
<span class="medgenPMjournal">J Coll Physicians Surg Pak</span>
2005 Jun;15(6):362-3.
<span class="bold">PMID: </span><a href="/pubmed/15924843" target="_blank">15924843</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Easy%20fatigability%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 (75)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/30721323">Camurati-Engelmann Disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Van Hul W,
Boudin E,
Vanhoenacker FM,
Mortier G</span><br />
<span class="medgenPMjournal">Calcif Tissue Int</span>
2019 May;104(5):554-560.
Epub 2019 Feb 5
doi: 10.1007/s00223-019-00532-1.
<span class="bold">PMID: </span><a href="/pubmed/30721323" target="_blank">30721323</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28220607">Neurological and spinal manifestations of the Ehlers-Danlos syndromes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Henderson FC Sr,
Austin C,
Benzel E,
Bolognese P,
Ellenbogen R,
Francomano CA,
Ireton C,
Klinge P,
Koby M,
Long D,
Patel S,
Singman EL,
Voermans NC</span><br />
<span class="medgenPMjournal">Am J Med Genet C Semin Med Genet</span>
2017 Mar;175(1):195-211.
Epub 2017 Feb 21
doi: 10.1002/ajmg.c.31549.
<span class="bold">PMID: </span><a href="/pubmed/28220607" target="_blank">28220607</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26482145">Onset Manifestations of Spinal and Bulbar Muscular Atrophy (Kennedy's Disease).</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Finsterer J,
Soraru G</span><br />
<span class="medgenPMjournal">J Mol Neurosci</span>
2016 Mar;58(3):321-9.
Epub 2015 Oct 19
doi: 10.1007/s12031-015-0663-x.
<span class="bold">PMID: </span><a href="/pubmed/26482145" target="_blank">26482145</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21777536">Juvenile dermatomyositis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ishaque S,
Ahmed S,
Ali R,
Minhas K</span><br />
<span class="medgenPMjournal">J Coll Physicians Surg Pak</span>
2011 Jul;21(7):434-6.
<span class="bold">PMID: </span><a href="/pubmed/21777536" target="_blank">21777536</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15924843">Takayasu's arteritis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tahir MH,
Iqbal T,
Raja MK</span><br />
<span class="medgenPMjournal">J Coll Physicians Surg Pak</span>
2005 Jun;15(6):362-3.
<span class="bold">PMID: </span><a href="/pubmed/15924843" target="_blank">15924843</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Easy%20fatigability%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 (165)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/30721323">Camurati-Engelmann Disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Van Hul W,
Boudin E,
Vanhoenacker FM,
Mortier G</span><br />
<span class="medgenPMjournal">Calcif Tissue Int</span>
2019 May;104(5):554-560.
Epub 2019 Feb 5
doi: 10.1007/s00223-019-00532-1.
<span class="bold">PMID: </span><a href="/pubmed/30721323" target="_blank">30721323</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15924843">Takayasu's arteritis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tahir MH,
Iqbal T,
Raja MK</span><br />
<span class="medgenPMjournal">J Coll Physicians Surg Pak</span>
2005 Jun;15(6):362-3.
<span class="bold">PMID: </span><a href="/pubmed/15924843" target="_blank">15924843</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15126909">Prospective association between hypotension and idiopathic chronic fatigue.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lucas KE,
Rowe PC,
Coresh J,
Klag MJ,
Meoni LA,
Ford DE</span><br />
<span class="medgenPMjournal">J Hypertens</span>
2004 Apr;22(4):691-5.
doi: 10.1097/00004872-200404000-00010.
<span class="bold">PMID: </span><a href="/pubmed/15126909" target="_blank">15126909</a></div>
<div class="nl"><a target="_blank" href="/pubmed/8121377">Epidemic neuropathy--Cuba, 1991-1994.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Centers for Disease Control and Prevention (CDC)</span><br />
<span class="medgenPMjournal">MMWR Morb Mortal Wkly Rep</span>
1994 Mar 18;43(10):183, 189-92.
<span class="bold">PMID: </span><a href="/pubmed/8121377" target="_blank">8121377</a></div>
<div class="nl"><a target="_blank" href="/pubmed/655080">Essentials in the management of myasthenia gravis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Galdi AP</span><br />
<span class="medgenPMjournal">Am Fam Physician</span>
1978 Jun;17(6):95-102.
<span class="bold">PMID: </span><a href="/pubmed/655080" target="_blank">655080</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Easy%20fatigability%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 (70)</a></div><h3 class="subhead">Prognosis</h3>
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<div class="portlet_content ln"><span class="medgenPMauthor">Francini-Pesenti F,
Vitturi N,
Tresso S,
Sorarù G</span><br />
<span class="medgenPMjournal">Rev Neurol (Paris)</span>
2020 Dec;176(10):780-787.
Epub 2020 Jul 4
doi: 10.1016/j.neurol.2020.03.020.
<span class="bold">PMID: </span><a href="/pubmed/32631678" target="_blank">32631678</a></div>
<div class="nl"><a target="_blank" href="/pubmed/25732451">A teenager presents with fulminant hepatic failure and acute hemolytic anemia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bose S,
Sonny A,
Rahman N</span><br />
<span class="medgenPMjournal">Chest</span>
2015 Mar;147(3):e100-e104.
doi: 10.1378/chest.14-1391.
<span class="bold">PMID: </span><a href="/pubmed/25732451" target="_blank">25732451</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21983953">Double-chambered right ventricle: an uncommon congenital heart disease. Case report and literature review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Animasahun BA,
Ekure EN,
Njokanma OF</span><br />
<span class="medgenPMjournal">Cardiovasc J Afr</span>
2011 Sep-Oct;22(5):274-7.
doi: 10.5830/CVJA-2010-068.
<span class="bold">PMID: </span><a href="/pubmed/21983953" target="_blank">21983953</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21777536">Juvenile dermatomyositis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ishaque S,
Ahmed S,
Ali R,
Minhas K</span><br />
<span class="medgenPMjournal">J Coll Physicians Surg Pak</span>
2011 Jul;21(7):434-6.
<span class="bold">PMID: </span><a href="/pubmed/21777536" target="_blank">21777536</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15924843">Takayasu's arteritis.</a></div>
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Iqbal T,
Raja MK</span><br />
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2005 Jun;15(6):362-3.
<span class="bold">PMID: </span><a href="/pubmed/15924843" target="_blank">15924843</a></div>
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<div class="portlet_content ln"><span class="medgenPMauthor">Ma J,
Zhang H,
Pang X,
Zhang J,
Zhao R,
Wang J,
Chang X,
Guo J,
Zhang W</span><br />
<span class="medgenPMjournal">Muscle Nerve</span>
2024 Feb;69(2):199-205.
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<div class="nl"><a target="_blank" href="/pubmed/35334084">Physical and mental fatigue in myasthenia gravis and its correlation with other symptoms.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Akkan Suzan A,
Kahraman Koytak P,
Uluc K,
Tanridag T</span><br />
<span class="medgenPMjournal">Acta Neurol Belg</span>
2022 Aug;122(4):915-923.
Epub 2022 Mar 25
doi: 10.1007/s13760-022-01919-y.
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<div class="nl"><a target="_blank" href="/pubmed/29535096">Middle mediastinal schwannoma concealed by asthma and GORD.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Dy P,
Lajom C,
Sanchez J</span><br />
<span class="medgenPMjournal">BMJ Case Rep</span>
2018 Mar 13;2018
doi: 10.1136/bcr-2017-223795.
<span class="bold">PMID: </span><a href="/pubmed/29535096" target="_blank">29535096</a><a href="/pmc/articles/PMC5878299" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21983953">Double-chambered right ventricle: an uncommon congenital heart disease. Case report and literature review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Animasahun BA,
Ekure EN,
Njokanma OF</span><br />
<span class="medgenPMjournal">Cardiovasc J Afr</span>
2011 Sep-Oct;22(5):274-7.
doi: 10.5830/CVJA-2010-068.
<span class="bold">PMID: </span><a href="/pubmed/21983953" target="_blank">21983953</a></div>
<div class="nl"><a target="_blank" href="/pubmed/2020086">A rare case of infective aneurysm involving all three sinuses of Valsalva complicated by left single coronary artery.</a></div>
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Katoh I,
Hara Y,
Yoshida R,
Joh T,
Tomino T</span><br />
<span class="medgenPMjournal">Jpn Circ J</span>
1991 Feb;55(2):159-64.
doi: 10.1253/jcj.55.159.
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<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Easy%20fatigability%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 (41)</a></div></div>
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