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<title>
Entry
- #616482 - ACHONDROPLASIA, SEVERE, WITH DEVELOPMENTAL DELAY AND ACANTHOSIS NIGRICANS; SADDAN
- OMIM
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<span class="h4">#616482</span>
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<a href="/clinicalSynopsis/616482"><strong>Clinical Synopsis</strong></a>
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<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#animalModel">Animal Model</a>
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<div><a href="https://clinicaltrials.gov/search?cond=(ACHONDROPLASIA, SEVERE, WITH DEVELOPMENTAL DELAY ACANTHOSIS NIGRICANS) OR (FGFR3)" class="mim-tip-hint" title="Clinical Trials" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Clinical Trials', 'domain': 'clinicaltrials.gov'})">Clinical Trials</a></div>
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</div>
<span>
<span class="mim-tip-bottom" qtip_title="<strong>Looking for this gene or this phenotype in other resources?</strong>" qtip_text="Select a related resource from the dropdown menu and click for a targeted link to information directly relevant.">
&nbsp;
</span>
</span>
</div>
<div class="col-lg-8 col-lg-pull-2 col-md-8 col-md-pull-2 col-sm-8 col-sm-pull-2 col-xs-12">
<div>
<a id="title" class="mim-anchor"></a>
<div>
<a id="number" class="mim-anchor"></a>
<div class="text-right">
<a href="#" class="mim-tip-icd" qtip_title="<strong>ICD+</strong>" qtip_text="
<strong>ORPHA:</strong> 85165<br />
<strong>DO:</strong> 0111158<br />
">ICD+</a>
</div>
<div>
<span class="h3">
<span class="mim-font mim-tip-hint" title="Phenotype description, molecular basis known">
<span class="text-danger"><strong>#</strong></span>
616482
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
ACHONDROPLASIA, SEVERE, WITH DEVELOPMENTAL DELAY AND ACANTHOSIS NIGRICANS; SADDAN
</span>
</h3>
</div>
<div>
<br />
</div>
<div>
<a id="alternativeTitles" class="mim-anchor"></a>
<div>
<p>
<span class="mim-font">
<em>Alternative titles; symbols</em>
</span>
</p>
</div>
<div>
<h4>
<span class="mim-font">
SADDAN DYSPLASIA
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<a id="phenotypeMap" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>Phenotype-Gene Relationships</strong>
</span>
</h4>
<div>
<table class="table table-bordered table-condensed table-hover small mim-table-padding">
<thead>
<tr class="active">
<th>
Location
</th>
<th>
Phenotype
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
<th>
Gene/Locus
</th>
<th>
Gene/Locus <br /> MIM number
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/34?start=-3&limit=10&highlight=34">
4p16.3
</a>
</span>
</td>
<td>
<span class="mim-font">
SADDAN
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616482"> 616482 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
FGFR3
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/134934"> 134934 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/616482" class="btn btn-warning" role="button"> Clinical Synopsis </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-warning dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimClinicalSynopsisFold" onclick="ga('send', 'event', 'Unfurl', 'ClinicalSynopsis', 'omim.org')">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
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&nbsp;
<div class="btn-group">
<button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
PheneGene Graphics <span class="caret"></span>
</button>
<ul class="dropdown-menu" style="width: 17em;">
<li><a href="/graph/linear/616482" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/616482" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Radial'})"> Radial </a></li>
</ul>
</div>
<span class="glyphicon glyphicon-question-sign mim-tip-hint" title="OMIM PheneGene graphics depict relationships between phenotypes, groups of related phenotypes (Phenotypic Series), and genes.<br /><a href='/static/omim/pdf/OMIM_Graphics.pdf' target='_blank'>A quick reference overview and guide (PDF)</a>"></span>
<div>
<p />
</div>
<div id="mimClinicalSynopsisFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small" style="margin: 5px">
<div>
<div>
<span class="h5 mim-font">
<strong> INHERITANCE </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Autosomal dominant <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/263681008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">263681008</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/771269000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">771269000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0443147&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0443147</a>, <a href="https://bioportal.bioontology.org/search?q=C1867440&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1867440</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000006</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000006</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> GROWTH </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Height </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Dwarfism <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/422065006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">422065006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/237836003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">237836003</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/237837007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">237837007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/E34.31" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">E34.31</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0013336&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0013336</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003510" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003510</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003510" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003510</a>]</span><br /> -
Short stature, severe disproportionate <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1846797&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1846797</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003498" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003498</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003498" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003498</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/422065006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">422065006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/237836003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">237836003</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/237837007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">237837007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/E34.31" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">E34.31</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/R62.52" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R62.52</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/783.43" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">783.43</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> HEAD & NECK </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Head </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Megalencephaly <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/9740002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">9740002</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/12138000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">12138000</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q04.5" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q04.5</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/Q75.3" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q75.3</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0221355&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0221355</a>, <a href="https://bioportal.bioontology.org/search?q=C2720434&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2720434</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001355" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001355</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001355" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001355</a>]</span><br /> -
Large anterior fontanel <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1866134&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1866134</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000260" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000260</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000260" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000260</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Face </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Midface hypoplasia <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1853242&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1853242</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0011800" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0011800</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0011800" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0011800</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=f0adae8ae2dc0ad9ed28c3c3e0e8f8a9" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Midface_Retrusion-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=f0adae8ae2dc0ad9ed28c3c3e0e8f8a9&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br /> -
Frontal bossing <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/90145001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">90145001</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0221354&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0221354</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002007</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002007</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=3ab8802347404fb5ebf087fa6440bb25" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Frontal_Bossing-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=3ab8802347404fb5ebf087fa6440bb25&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Ears </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Hearing loss, mild-to-moderate <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/21451000119101" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">21451000119101</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1852284&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1852284</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H91.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H91.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/389.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">389.9</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/389" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">389</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000365" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000365</a>]</span><br /> -
Otitis media <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/65363002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">65363002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H66.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H66.9</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H66.90" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H66.90</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/382.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">382.9</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0029882&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0029882</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000388" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000388</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000388" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000388</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Eyes </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Exotropia (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/399252000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">399252000</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/399054005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">399054005</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H50.10" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H50.10</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H50.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H50.1</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/378.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">378.1</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/378.10" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">378.10</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0015310&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0015310</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000577" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000577</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000577" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000577</a>]</span><br /> -
High myopia (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/34187009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">34187009</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0271183&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0271183</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0011003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0011003</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0011003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0011003</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Nose </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Depressed nasal bridge <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1836542&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1836542</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0005280" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0005280</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0005280" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0005280</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=7043769fd21a78a413fd758918cdda17" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Nasal_Bridge,Depressed-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=7043769fd21a78a413fd758918cdda17&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> CARDIOVASCULAR </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Heart </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Congestive heart failure (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/42343007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">42343007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/I50.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">I50.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/428.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">428.0</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0018802&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0018802</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001635" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001635</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001635" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001635</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Vascular </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Pulmonary hypertension (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/70995007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">70995007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/I27.20" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">I27.20</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0020542&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0020542</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002092" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002092</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> RESPIRATORY </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Respiratory compromise at birth <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4228652&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4228652</a>]</span><br /> -
Sleep apnea <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/73430006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">73430006</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/G47.3" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">G47.3</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/G47.30" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">G47.30</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/780.57" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">780.57</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3496180&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3496180</a>, <a href="https://bioportal.bioontology.org/search?q=C0037315&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0037315</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0010535" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0010535</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0010535" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0010535</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> CHEST </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> External Features </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Small chest with flaring costal margins <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4228659&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4228659</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> ABDOMEN </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Gastrointestinal </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Gastroesophageal reflux (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/235595009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">235595009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/722884003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">722884003</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/698065002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">698065002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/K21" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">K21</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/K21.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">K21.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/530.81" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">530.81</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3813607&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3813607</a>, <a href="https://bioportal.bioontology.org/search?q=C4317146&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4317146</a>, <a href="https://bioportal.bioontology.org/search?q=C0017168&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0017168</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002020" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002020</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002020" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002020</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> SKELETAL </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Skull </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Overgrowth of mandible in adults <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4228658&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4228658</a>]</span><br /> -
Pneumatization of the sinuses <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4228657&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4228657</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Spine </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Platyspondyly <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1844704&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1844704</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000926" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000926</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000926" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000926</a>]</span><br /> -
Kyphosis <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/71311003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">71311003</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/414564002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">414564002</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/413428007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">413428007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/M40.20" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M40.20</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/Q76.41" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q76.41</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/737.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">737.1</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0265673&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0265673</a>, <a href="https://bioportal.bioontology.org/search?q=C0022821&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0022821</a>, <a href="https://bioportal.bioontology.org/search?q=C2115817&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2115817</a>, <a href="https://bioportal.bioontology.org/search?q=C0022822&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0022822</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002808" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002808</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002808" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002808</a>]</span><br /> -
Lumbar lordosis <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/313471000119104" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">313471000119104</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1184923&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1184923</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002938" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002938</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002938" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002938</a>]</span><br /> -
Cervical spinal stenosis <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/83561009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">83561009</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/M48.02" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M48.02</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/723.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">723.0</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0158280&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0158280</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Pelvis </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Posterior rotation of hips <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4228656&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4228656</a>]</span><br />
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<div>
<span class="h5 mim-font">
<em> Limbs </em>
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<div style="margin-left: 2em;">
<span class="mim-font">
- Rhizomelia <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1866730&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1866730</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0008905" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0008905</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0008905" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0008905</a>]</span><br /> -
Mesomelia <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0549306&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0549306</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003027" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003027</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003027" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003027</a>]</span><br /> -
Anterior bowing of femora <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4228655&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4228655</a>]</span><br /> -
Posterior bowing of tibiae <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4228654&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4228654</a>]</span><br />
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<strong> SKIN, NAILS, & HAIR </strong>
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<div style="margin-left: 2em;">
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<em> Skin </em>
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<div style="margin-left: 2em;">
<span class="mim-font">
- Redundant skin folds on upper and lower limbs <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4228653&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4228653</a>]</span><br /> -
Acanthosis nigricans <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/402599005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">402599005</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/72129000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">72129000</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/L83" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">L83</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0000889&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0000889</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000956" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000956</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000956" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000956</a>]</span><br />
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<div>
<span class="h5 mim-font">
<strong> NEUROLOGIC </strong>
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<div style="margin-left: 2em;">
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<em> Central Nervous System </em>
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<span class="mim-font">
- Seizures <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/91175000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">91175000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0036572&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0036572</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001250" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001250</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001250" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001250</a>]</span><br /> -
Hydrocephalus <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/230745008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">230745008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/G91" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">G91</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/G91.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">G91.9</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0020255&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0020255</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000238" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000238</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000238" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000238</a>]</span><br /> -
Central apnea <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0520680&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0520680</a>, <a href="https://bioportal.bioontology.org/search?q=C3887548&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3887548</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0010536" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0010536</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0002871" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002871</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002871" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002871</a>]</span><br /> -
Developmental delay <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/248290002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">248290002</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/224958001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">224958001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/F88" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">F88</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/315.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">315.9</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0557874&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0557874</a>, <a href="https://bioportal.bioontology.org/search?q=C0424605&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0424605</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001263" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001263</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001263" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001263</a>]</span><br /> -
Limited language acquisition <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4228660&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4228660</a>]</span><br /> -
Mental retardation, moderate to profound <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3277314&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3277314</a>]</span><br /> -
Thin corpus callosum <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5441562&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5441562</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0033725" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0033725</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0033725" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0033725</a>]</span><br />
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<span class="h5 mim-font">
<strong> MISCELLANEOUS </strong>
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<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Clinical overlap with thanatophoric dysplasia I (<a href="/entry/187600">187600</a>) and severe achondroplasia (<a href="/entry/100800">100800</a>)<br />
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<span class="h5 mim-font">
<strong> MOLECULAR BASIS </strong>
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<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Caused by mutation in the fibroblast growth factor receptor-3 gene (FGFR3, <a href="/entry/134934#0015">134934.0015</a>)<br />
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<a href="#mimClinicalSynopsisFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
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<p>A number sign (#) is used with this entry because of evidence that severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN) is caused by heterozygous mutation in the gene encoding fibroblast growth factor receptor-3 (FGFR3; <a href="/entry/134934">134934</a>) on chromosome 4p16.</p>
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<strong>Description</strong>
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<p>SADDAN dysplasia (severe achondroplasia with developmental delay and acanthosis nigricans) is a very rare skeletal dysplasia characterized by the constellation of these features. Radiology reveals 'ram's horn' shaped clavicles and reverse bowing of lower limbs. Approximately half of patients die before the fourth week of life secondary to respiratory failure (summary by <a href="#5" class="mim-tip-reference" title="Zankl, A., Elakis, G., Susman, R. D., Inglis, G., Gardener, G., Buckley, M. F., Roscioli, T. &lt;strong&gt;Prenatal and postnatal presentation of severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN) due to the FGFR3 lys650met mutation.&lt;/strong&gt; Am. J. Med. Genet. 146A: 212-218, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18076102/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;18076102&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.32085&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="18076102">Zankl et al., 2008</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18076102" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>Clinical Features</strong>
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<p><a href="#4" class="mim-tip-reference" title="Tavormina, P. L., Bellus, G. A., Webster, M. K., Bamshad, M. J., Fraley, A. E., McIntosh, I., Szabo, J., Jiang, W., Jabs, E. W., Wilcox, W. R., Wasmuth, J. J., Donoghue, D. J., Thompson, L. M., Francomano, C. A. &lt;strong&gt;A novel skeletal dysplasia with developmental delay and acanthosis nigricans is caused by a lys650-to-met mutation in the fibroblast growth factor receptor 3 gene.&lt;/strong&gt; Am. J. Hum. Genet. 64: 722-731, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10053006/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;10053006&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/302275&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="10053006">Tavormina et al. (1999)</a> reported 4 unrelated individuals with a distinctive syndrome comprising severe achondroplasia with developmental delay and acanthosis nigricans, which they referred to as SADDAN dysplasia. Two of the patients had previously been reported in an abstract (<a href="#2" class="mim-tip-reference" title="Francomano, C. A., Bellus, G. A., Szabo, J., McIntosh, I., Dorst, J., Lee, R., Hurko, O., Fraley, A. E., Bamshad, M. J. &lt;strong&gt;A new skeletal dysplasia with severe tibial bowing, profound developmental delay and acanthosis nigricans is caused by a Lys650Met mutation in fibroblast growth factor receptor 3 (FGFR3). (Abstract)&lt;/strong&gt; Am. J. Hum. Genet. 59 (suppl.): A25 only, 1996."None>Francomano et al., 1996</a>). The severity approached that observed in thanatophoric dysplasia type I (TD1; <a href="/entry/187600">187600</a>). Differences included the development of extensive areas of acanthosis nigricans beginning in early childhood in 3 of 4 patients, severe neurologic impairments, and survival past infancy without prolonged life-support measures. <a href="#1" class="mim-tip-reference" title="Bellus, G. A., Bamshad, M. J., Przylepa, K. A., Dorst, J., Lee, R. R., Hurko, O., Jabs, E. W., Curry, C. J. R., Wilcox, W. R., Lachman, R. S., Rimoin, D. L., Francomano, C. A. &lt;strong&gt;Severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN): phenotypic analysis of a new skeletal dysplasia caused by a lys650met mutation in fibroblast growth factor receptor 3.&lt;/strong&gt; Am. J. Med. Genet. 85: 53-65, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10377013/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;10377013&lt;/a&gt;]" pmid="10377013">Bellus et al. (1999)</a> described in detail the clinical and radiographic features of these patients. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=10377013+10053006" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#5" class="mim-tip-reference" title="Zankl, A., Elakis, G., Susman, R. D., Inglis, G., Gardener, G., Buckley, M. F., Roscioli, T. &lt;strong&gt;Prenatal and postnatal presentation of severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN) due to the FGFR3 lys650met mutation.&lt;/strong&gt; Am. J. Med. Genet. 146A: 212-218, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18076102/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;18076102&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.32085&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="18076102">Zankl et al. (2008)</a> reported a patient with the SADDAN phenotype. He had severe micromelia, frontal bossing, large anterior fontanel, depressed nasal bridge, reverse tibial bowing, small thorax, and hypotonia. Acanthosis nigricans was not present. He died at age 21 days due to respiratory failure. <a href="#5" class="mim-tip-reference" title="Zankl, A., Elakis, G., Susman, R. D., Inglis, G., Gardener, G., Buckley, M. F., Roscioli, T. &lt;strong&gt;Prenatal and postnatal presentation of severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN) due to the FGFR3 lys650met mutation.&lt;/strong&gt; Am. J. Med. Genet. 146A: 212-218, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18076102/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;18076102&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.32085&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="18076102">Zankl et al. (2008)</a> noted that about half of patients reported with the K650M mutation died before 21 days of age, whereas others have shown longer survival. The authors also noted that acanthosis nigricans has been reported in patients with other skeletal dysplasias due to FGFR3 mutations, and thus should be considered a long-term complication rather than a specific feature of SADDAN. In addition, mental retardation only becomes apparent in long-term survivors and thus cannot be used as a diagnostic criterion for SADDAN in the neonatal period. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18076102" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p>In 4 unrelated patients with SADDAN dysplasia, <a href="#4" class="mim-tip-reference" title="Tavormina, P. L., Bellus, G. A., Webster, M. K., Bamshad, M. J., Fraley, A. E., McIntosh, I., Szabo, J., Jiang, W., Jabs, E. W., Wilcox, W. R., Wasmuth, J. J., Donoghue, D. J., Thompson, L. M., Francomano, C. A. &lt;strong&gt;A novel skeletal dysplasia with developmental delay and acanthosis nigricans is caused by a lys650-to-met mutation in the fibroblast growth factor receptor 3 gene.&lt;/strong&gt; Am. J. Hum. Genet. 64: 722-731, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10053006/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;10053006&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/302275&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="10053006">Tavormina et al. (1999)</a> identified a heterozygous mutation in the FGFR3 gene (K650M; <a href="/entry/134934#0015">134934.0015</a>), resulting in a dramatic increase in constitutive receptor kinase activity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10053006" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In a patient with SADDAN dysplasia, <a href="#5" class="mim-tip-reference" title="Zankl, A., Elakis, G., Susman, R. D., Inglis, G., Gardener, G., Buckley, M. F., Roscioli, T. &lt;strong&gt;Prenatal and postnatal presentation of severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN) due to the FGFR3 lys650met mutation.&lt;/strong&gt; Am. J. Med. Genet. 146A: 212-218, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18076102/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;18076102&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.32085&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="18076102">Zankl et al. (2008)</a> identified heterozygosity for the K650M mutation in the FGFR3 gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18076102" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>Animal Model</strong>
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<p><a href="#3" class="mim-tip-reference" title="Iwata, T., Li, C.-L., Deng, C.-X., Francomano, C. A. &lt;strong&gt;Highly activated Fgfr3 with the K644M mutation causes prolonged survival in severe dwarf mice.&lt;/strong&gt; Hum. Molec. Genet. 10: 1255-1264, 2001.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11406607/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;11406607&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/10.12.1255&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="11406607">Iwata et al. (2001)</a> introduced the murine equivalent (K644M) of the human SADDAN point mutation (K650M; <a href="/entry/134934#0015">134934.0015</a>) into the mouse Fgfr3 gene. Heterozygous mutant mice showed a phenotype similar to human SADDAN, e.g., the majority of the SADDAN mice survived the perinatal period. The long bone abnormalities in SADDAN mice were milder than the TDII model. In addition, overgrowth of the cartilaginous tissues was observed in the rib cartilage, trachea, and nasal septum. Unlike the TDII model, FGF ligands at low concentrations differentially activated Map kinase in primary chondrocyte cultures from wildtype and SADDAN mice. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11406607" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>REFERENCES</strong>
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<a id="Bellus1999" class="mim-anchor"></a>
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Bellus, G. A., Bamshad, M. J., Przylepa, K. A., Dorst, J., Lee, R. R., Hurko, O., Jabs, E. W., Curry, C. J. R., Wilcox, W. R., Lachman, R. S., Rimoin, D. L., Francomano, C. A.
<strong>Severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN): phenotypic analysis of a new skeletal dysplasia caused by a lys650met mutation in fibroblast growth factor receptor 3.</strong>
Am. J. Med. Genet. 85: 53-65, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10377013/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10377013</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10377013" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
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<a id="Francomano1996" class="mim-anchor"></a>
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Francomano, C. A., Bellus, G. A., Szabo, J., McIntosh, I., Dorst, J., Lee, R., Hurko, O., Fraley, A. E., Bamshad, M. J.
<strong>A new skeletal dysplasia with severe tibial bowing, profound developmental delay and acanthosis nigricans is caused by a Lys650Met mutation in fibroblast growth factor receptor 3 (FGFR3). (Abstract)</strong>
Am. J. Hum. Genet. 59 (suppl.): A25 only, 1996.
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<a id="3" class="mim-anchor"></a>
<a id="Iwata2001" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Iwata, T., Li, C.-L., Deng, C.-X., Francomano, C. A.
<strong>Highly activated Fgfr3 with the K644M mutation causes prolonged survival in severe dwarf mice.</strong>
Hum. Molec. Genet. 10: 1255-1264, 2001.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/11406607/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">11406607</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11406607" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/hmg/10.12.1255" target="_blank">Full Text</a>]
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<a id="Tavormina1999" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Tavormina, P. L., Bellus, G. A., Webster, M. K., Bamshad, M. J., Fraley, A. E., McIntosh, I., Szabo, J., Jiang, W., Jabs, E. W., Wilcox, W. R., Wasmuth, J. J., Donoghue, D. J., Thompson, L. M., Francomano, C. A.
<strong>A novel skeletal dysplasia with developmental delay and acanthosis nigricans is caused by a lys650-to-met mutation in the fibroblast growth factor receptor 3 gene.</strong>
Am. J. Hum. Genet. 64: 722-731, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10053006/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10053006</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10053006" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1086/302275" target="_blank">Full Text</a>]
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<a id="5" class="mim-anchor"></a>
<a id="Zankl2008" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Zankl, A., Elakis, G., Susman, R. D., Inglis, G., Gardener, G., Buckley, M. F., Roscioli, T.
<strong>Prenatal and postnatal presentation of severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN) due to the FGFR3 lys650met mutation.</strong>
Am. J. Med. Genet. 146A: 212-218, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18076102/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18076102</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18076102" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/ajmg.a.32085" target="_blank">Full Text</a>]
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Creation Date:
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Carol A. Bocchini : 7/24/2015
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alopez : 06/16/2023
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carol : 07/26/2015<br>carol : 7/24/2015
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<strong>#</strong> 616482
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ACHONDROPLASIA, SEVERE, WITH DEVELOPMENTAL DELAY AND ACANTHOSIS NIGRICANS; SADDAN
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<em>Alternative titles; symbols</em>
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SADDAN DYSPLASIA
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<strong>ORPHA:</strong> 85165; &nbsp;
<strong>DO:</strong> 0111158; &nbsp;
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<strong>Phenotype-Gene Relationships</strong>
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Location
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Phenotype
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Phenotype <br /> MIM number
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Inheritance
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Phenotype <br /> mapping key
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Gene/Locus
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4p16.3
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SADDAN
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616482
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Autosomal dominant
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3
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FGFR3
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134934
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because of evidence that severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN) is caused by heterozygous mutation in the gene encoding fibroblast growth factor receptor-3 (FGFR3; 134934) on chromosome 4p16.</p>
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<strong>Description</strong>
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<p>SADDAN dysplasia (severe achondroplasia with developmental delay and acanthosis nigricans) is a very rare skeletal dysplasia characterized by the constellation of these features. Radiology reveals 'ram's horn' shaped clavicles and reverse bowing of lower limbs. Approximately half of patients die before the fourth week of life secondary to respiratory failure (summary by Zankl et al., 2008). </p>
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<strong>Clinical Features</strong>
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<p>Tavormina et al. (1999) reported 4 unrelated individuals with a distinctive syndrome comprising severe achondroplasia with developmental delay and acanthosis nigricans, which they referred to as SADDAN dysplasia. Two of the patients had previously been reported in an abstract (Francomano et al., 1996). The severity approached that observed in thanatophoric dysplasia type I (TD1; 187600). Differences included the development of extensive areas of acanthosis nigricans beginning in early childhood in 3 of 4 patients, severe neurologic impairments, and survival past infancy without prolonged life-support measures. Bellus et al. (1999) described in detail the clinical and radiographic features of these patients. </p><p>Zankl et al. (2008) reported a patient with the SADDAN phenotype. He had severe micromelia, frontal bossing, large anterior fontanel, depressed nasal bridge, reverse tibial bowing, small thorax, and hypotonia. Acanthosis nigricans was not present. He died at age 21 days due to respiratory failure. Zankl et al. (2008) noted that about half of patients reported with the K650M mutation died before 21 days of age, whereas others have shown longer survival. The authors also noted that acanthosis nigricans has been reported in patients with other skeletal dysplasias due to FGFR3 mutations, and thus should be considered a long-term complication rather than a specific feature of SADDAN. In addition, mental retardation only becomes apparent in long-term survivors and thus cannot be used as a diagnostic criterion for SADDAN in the neonatal period. </p>
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<span class="mim-font">
<strong>Molecular Genetics</strong>
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<p>In 4 unrelated patients with SADDAN dysplasia, Tavormina et al. (1999) identified a heterozygous mutation in the FGFR3 gene (K650M; 134934.0015), resulting in a dramatic increase in constitutive receptor kinase activity. </p><p>In a patient with SADDAN dysplasia, Zankl et al. (2008) identified heterozygosity for the K650M mutation in the FGFR3 gene. </p>
</span>
<div>
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<h4>
<span class="mim-font">
<strong>Animal Model</strong>
</span>
</h4>
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<span class="mim-text-font">
<p>Iwata et al. (2001) introduced the murine equivalent (K644M) of the human SADDAN point mutation (K650M; 134934.0015) into the mouse Fgfr3 gene. Heterozygous mutant mice showed a phenotype similar to human SADDAN, e.g., the majority of the SADDAN mice survived the perinatal period. The long bone abnormalities in SADDAN mice were milder than the TDII model. In addition, overgrowth of the cartilaginous tissues was observed in the rib cartilage, trachea, and nasal septum. Unlike the TDII model, FGF ligands at low concentrations differentially activated Map kinase in primary chondrocyte cultures from wildtype and SADDAN mice. </p>
</span>
<div>
<br />
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<h4>
<span class="mim-font">
<strong>REFERENCES</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<ol>
<li>
<p class="mim-text-font">
Bellus, G. A., Bamshad, M. J., Przylepa, K. A., Dorst, J., Lee, R. R., Hurko, O., Jabs, E. W., Curry, C. J. R., Wilcox, W. R., Lachman, R. S., Rimoin, D. L., Francomano, C. A.
<strong>Severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN): phenotypic analysis of a new skeletal dysplasia caused by a lys650met mutation in fibroblast growth factor receptor 3.</strong>
Am. J. Med. Genet. 85: 53-65, 1999.
[PubMed: 10377013]
</p>
</li>
<li>
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Francomano, C. A., Bellus, G. A., Szabo, J., McIntosh, I., Dorst, J., Lee, R., Hurko, O., Fraley, A. E., Bamshad, M. J.
<strong>A new skeletal dysplasia with severe tibial bowing, profound developmental delay and acanthosis nigricans is caused by a Lys650Met mutation in fibroblast growth factor receptor 3 (FGFR3). (Abstract)</strong>
Am. J. Hum. Genet. 59 (suppl.): A25 only, 1996.
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Iwata, T., Li, C.-L., Deng, C.-X., Francomano, C. A.
<strong>Highly activated Fgfr3 with the K644M mutation causes prolonged survival in severe dwarf mice.</strong>
Hum. Molec. Genet. 10: 1255-1264, 2001.
[PubMed: 11406607]
[Full Text: https://doi.org/10.1093/hmg/10.12.1255]
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<p class="mim-text-font">
Tavormina, P. L., Bellus, G. A., Webster, M. K., Bamshad, M. J., Fraley, A. E., McIntosh, I., Szabo, J., Jiang, W., Jabs, E. W., Wilcox, W. R., Wasmuth, J. J., Donoghue, D. J., Thompson, L. M., Francomano, C. A.
<strong>A novel skeletal dysplasia with developmental delay and acanthosis nigricans is caused by a lys650-to-met mutation in the fibroblast growth factor receptor 3 gene.</strong>
Am. J. Hum. Genet. 64: 722-731, 1999.
[PubMed: 10053006]
[Full Text: https://doi.org/10.1086/302275]
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<li>
<p class="mim-text-font">
Zankl, A., Elakis, G., Susman, R. D., Inglis, G., Gardener, G., Buckley, M. F., Roscioli, T.
<strong>Prenatal and postnatal presentation of severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN) due to the FGFR3 lys650met mutation.</strong>
Am. J. Med. Genet. 146A: 212-218, 2008.
[PubMed: 18076102]
[Full Text: https://doi.org/10.1002/ajmg.a.32085]
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