nih-gov/www.ncbi.nlm.nih.gov/omim/605275

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- #605275 - NOONAN SYNDROME 2; NS2
- OMIM
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<span class="h4">#605275</span>
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<a href="#title"><strong>Title</strong></a>
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<a href="#phenotypeMap"><strong>Phenotype-Gene Relationships</strong></a>
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<a href="/clinicalSynopsis/605275"><strong>Clinical Synopsis</strong></a>
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<a href="/phenotypicSeries/PS163950"> <strong>Phenotypic Series</strong> </a>
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<a href="#text"><strong>Text</strong></a>
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<a href="#description">Description</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#clinicalFeatures">Clinical Features</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#inheritance">Inheritance</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#molecularGenetics">Molecular Genetics</a>
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<li role="presentation">
<a href="#references"><strong>References</strong></a>
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<a href="#contributors"><strong>Contributors</strong></a>
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<li role="presentation">
<a href="#creationDate"><strong>Creation Date</strong></a>
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<div><a href="https://clinicaltrials.gov/search?cond=NOONAN SYNDROME" class="mim-tip-hint" title="A registry of federally and privately supported clinical trials conducted in the United States and around the world." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Clinical Trials', 'domain': 'clinicaltrials.gov'})">Clinical Trials</a></div>
<div><a href="https://www.orpha.net/consor/cgi-bin/ClinicalLabs_Search_Simple.php?lng=EN&LnkId=206&Typ=Pat" class="mim-tip-hint" title="A list of European laboratories that offer genetic testing." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'EuroGentest', 'domain': 'orpha.net'})">EuroGentest</a></div>
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</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> 648<br />
<strong>DO:</strong> 0060580<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>
605275
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
NOONAN SYNDROME 2; NS2
</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">
NOONAN SYNDROME, AUTOSOMAL RECESSIVE
</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/22/71?start=-3&limit=10&highlight=71">
22q11.21
</a>
</span>
</td>
<td>
<span class="mim-font">
Noonan syndrome 2
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605275"> 605275 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</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">
LZTR1
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600574"> 600574 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/605275" 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>
</button>
</div>
&nbsp;
<div class="btn-group">
<a href="/phenotypicSeries/PS163950" class="btn btn-info" role="button"> Phenotypic Series </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-info dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimPhenotypicSeriesFold" onclick="ga('send', 'event', 'Unfurl', 'PhenotypicSeries', 'omim.org')">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
</div>
&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/605275" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/605275" 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 recessive <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/258211005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">258211005</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0441748&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0441748</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</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">
- Normal to increased birth length <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1866224&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1866224</a>]</span><br /> -
Short stature (in some patients) <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> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0349588&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0349588</a>, <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>, <a href="https://hpo.jax.org/app/browse/term/HP:0004322" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0004322</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0004322" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0004322</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Weight </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Normal to increased birth weight <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1866226&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1866226</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">
- Normal to increased occipitofrontal circumference (OFC) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4747275&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4747275</a>]</span><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">
- Posteriorly rotated ears <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/253251006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">253251006</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0431478&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0431478</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000358" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000358</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000358" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000358</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">
- Downslanting palpebral fissures <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/246800008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">246800008</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0423110&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0423110</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000494" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000494</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000494" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000494</a>]</span><br /> -
Hypertelorism (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/22006008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">22006008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q75.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q75.2</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/376.41" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">376.41</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0020534&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0020534</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000316" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000316</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000316" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000316</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=593a4d488f00bb03351a0ddffaf4ac9a" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Eyes,Widely_Spaced-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=593a4d488f00bb03351a0ddffaf4ac9a&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 /> -
Ptosis (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/11934000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">11934000</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/29696001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">29696001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H02.409" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H02.409</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H02.40" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H02.40</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H02.4" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H02.4</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/374.3" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">374.3</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/374.30" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">374.30</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0005745&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0005745</a>, <a href="https://bioportal.bioontology.org/search?q=C0033377&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0033377</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000508" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000508</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000508" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000508</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=76abf29563d4adc64d21da86221224b1" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Ptosis-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=76abf29563d4adc64d21da86221224b1&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> Neck </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Broad, short neck <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1856662&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1856662</a>]</span><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">
- Pulmonary valve stenosis <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/56786000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">56786000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0034089&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0034089</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001642" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001642</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001642" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001642</a>]</span><br /> -
Mitral valve stenosis <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/79619009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">79619009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/86466006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">86466006</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/I05.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">I05.0</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/394.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">394.0</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0264766&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0264766</a>, <a href="https://bioportal.bioontology.org/search?q=C0026269&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0026269</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001718" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001718</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001718" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001718</a>]</span><br /> -
Septal defects <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/253273004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">253273004</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5779791&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5779791</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001671" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001671</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001671" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001671</a>]</span><br /> -
Coarctation of the aorta <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/7305005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">7305005</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q25.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q25.1</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/747.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">747.1</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/747.10" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">747.10</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0003492&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0003492</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001680" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001680</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001680" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001680</a>]</span><br /> -
Cardiomyopathy <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/85898001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">85898001</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/57809008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">57809008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/I51.5" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">I51.5</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/I42" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">I42</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/I42.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">I42.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/425" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">425</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0878544&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0878544</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001638" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001638</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001638" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001638</a>]</span><br />
</span>
</div>
</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">
- Broad chest (in some patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1839248&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1839248</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000914" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000914</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000914" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000914</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Ribs Sternum Clavicles & Scapulae </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Pectus deformity <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1860493&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1860493</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000766" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000766</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000766" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000766</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Breasts </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Widely spaced nipples (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/423230008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">423230008</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1827524&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1827524</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0006610" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0006610</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0006610" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0006610</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> GENITOURINARY </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Internal Genitalia (Male) </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Cryptorchidism (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/204878001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">204878001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q53.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q53.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/752.51" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">752.51</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0010417&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0010417</a>, <a href="https://bioportal.bioontology.org/search?q=C5441920&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5441920</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000028" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000028</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000028" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000028</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>
<span class="mim-font">
- Arthrogryposis (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/111246005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">111246005</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/205402004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">205402004</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q74.3" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q74.3</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0003886&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0003886</a>, <a href="https://bioportal.bioontology.org/search?q=C5779613&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5779613</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002804" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002804</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002804" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002804</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> SKIN, NAILS, & HAIR </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Hair </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Curly hair <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/225570000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">225570000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0558165&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0558165</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002212" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002212</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002212" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002212</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> NEUROLOGIC </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Central Nervous System </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- 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 /> -
Impaired intellectual development <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4747273&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4747273</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001249" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001249</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> HEMATOLOGY </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Coagulation defects (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/64779008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">64779008</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/362970003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">362970003</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/D68.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">D68.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/286" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">286</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0005779&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0005779</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003256" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003256</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0001928" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001928</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> NEOPLASIA </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Leukemia (in 2 families) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/93143009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">93143009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1162768007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1162768007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/C95" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">C95</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/C95.90" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">C95.90</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/C95.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">C95.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/208.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">208.9</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/208" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">208</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0023418&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0023418</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001909" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001909</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001909" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001909</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> PRENATAL MANIFESTATIONS </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Amniotic Fluid </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Polyhydramnios (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/86203003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">86203003</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/O40" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">O40</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/657.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">657.0</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/657" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">657</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0020224&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0020224</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001561" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001561</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001561" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001561</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> MOLECULAR BASIS </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Caused by mutation in the leucine zipper-like transcriptional regulator 1 gene (LZTR1, <a href="/entry/600574#0010">600574.0010</a>)<br />
</span>
</div>
</div>
</div>
<div class="text-right">
<a href="#mimClinicalSynopsisFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
</div>
</div>
</div>
<div id="mimPhenotypicSeriesFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small">
<div class="row">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<h5>
Noonan syndrome
- <a href="/phenotypicSeries/PS163950">PS163950</a>
- 16 Entries
</h5>
</div>
</div>
<div class="row" style="margin-left: 0.125em; margin-right: 0.125em;">
<table class="table table-bordered table-condensed table-hover mim-table-padding">
<thead>
<tr>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Location</strong>
</th>
<th class="col-lg-5 col-md-5 col-sm-5 col-xs-6 text-nowrap">
<strong>Phenotype</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Inheritance</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Phenotype<br />mapping key</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Phenotype<br />MIM number</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Gene/Locus</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Gene/Locus<br />MIM number</strong>
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/943?start=-3&limit=10&highlight=943"> 1p13.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613224"> Noonan syndrome 6 </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">
<a href="/entry/613224"> 613224 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/164790"> NRAS </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/164790"> 164790 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1231?start=-3&limit=10&highlight=1231"> 1q22 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615355"> Noonan syndrome 8 </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">
<a href="/entry/615355"> 615355 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609591"> RIT1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609591"> 609591 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/151?start=-3&limit=10&highlight=151"> 2p23.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617506"> Noonan syndrome-like disorder with loose anagen hair 2 </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">
<a href="/entry/617506"> 617506 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600590"> PPP1CB </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600590"> 600590 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/200?start=-3&limit=10&highlight=200"> 2p22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610733"> Noonan syndrome 4 </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">
<a href="/entry/610733"> 610733 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182530"> SOS1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182530"> 182530 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/304?start=-3&limit=10&highlight=304"> 2p14 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619745"> Noonan syndrome 14 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</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">
<a href="/entry/619745"> 619745 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609292"> SPRED2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609292"> 609292 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/70?start=-3&limit=10&highlight=70"> 3p25.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611553"> Noonan syndrome 5 </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">
<a href="/entry/611553"> 611553 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/164760"> RAF1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/164760"> 164760 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/718?start=-3&limit=10&highlight=718"> 3q22.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618499"> Noonan syndrome 11 </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">
<a href="/entry/618499"> 618499 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608435"> MRAS </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608435"> 608435 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/7/742?start=-3&limit=10&highlight=742"> 7q34 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613706"> Noonan syndrome 7 </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">
<a href="/entry/613706"> 613706 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/164757"> BRAF </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/164757"> 164757 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/10/563?start=-3&limit=10&highlight=563"> 10q25.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607721"> Noonan syndrome-like with loose anagen hair 1 </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">
<a href="/entry/607721"> 607721 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602775"> SHOC2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602775"> 602775 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/11/193?start=-3&limit=10&highlight=193"> 11p15.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618624"> Noonan syndrome 12 </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">
<a href="/entry/618624"> 618624 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600098"> RRAS2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600098"> 600098 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/240?start=-3&limit=10&highlight=240"> 12p12.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609942"> Noonan syndrome 3 </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">
<a href="/entry/609942"> 609942 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/190070"> KRAS </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/190070"> 190070 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/823?start=-3&limit=10&highlight=823"> 12q24.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/163950"> Noonan syndrome 1 </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">
<a href="/entry/163950"> 163950 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/176876"> PTPN11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/176876"> 176876 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/218?start=-3&limit=10&highlight=218"> 14q21.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616559"> Noonan syndrome 9 </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">
<a href="/entry/616559"> 616559 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601247"> SOS2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601247"> 601247 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/22/71?start=-3&limit=10&highlight=71"> 22q11.21 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616564"> Noonan syndrome 10 </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">
<a href="/entry/616564"> 616564 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600574"> LZTR1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600574"> 600574 </a>
</span>
</td>
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<a href="/geneMap/22/71?start=-3&limit=10&highlight=71"> 22q11.21 </a>
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<a href="/entry/605275"> Noonan syndrome 2 </a>
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<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
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<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<a href="/entry/605275"> 605275 </a>
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<a href="/entry/600574"> LZTR1 </a>
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<a href="/entry/600574"> 600574 </a>
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<a href="/geneMap/22/85?start=-3&limit=10&highlight=85"> 22q11.22 </a>
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<span class="mim-font">
<a href="/entry/619087"> Noonan syndrome 13 </a>
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<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<a href="/entry/619087"> 619087 </a>
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<a href="/entry/176948"> MAPK1 </a>
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<span class="mim-font">
<a href="/entry/176948"> 176948 </a>
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<p>A number sign (#) is used with this entry because of evidence that Noonan syndrome-2 (NS2) is caused by homozygous or compound heterozygous mutation in the LZTR1 gene (<a href="/entry/600574">600574</a>) on chromosome 22q11.</p>
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<p>Noonan syndrome (NS) is a multiple congenital anomalies syndrome characterized by a typical face, congenital heart disease, and short stature (summary by <a href="#5" class="mim-tip-reference" title="van der Burgt, I., Brunner, H. &lt;strong&gt;Genetic heterogeneity in Noonan syndrome: evidence for an autosomal recessive form.&lt;/strong&gt; Am. J. Med. Genet. 94: 46-51, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10982482/&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;10982482&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/1096-8628(20000904)94:1&lt;46::aid-ajmg10&gt;3.0.co;2-i&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="10982482">van der Burgt and Brunner, 2000</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10982482" 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>For a general phenotypic description and a discussion of genetic heterogeneity of Noonan syndrome, see NS1 (<a href="/entry/163950">163950</a>).</p>
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<strong>Clinical Features</strong>
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<p><a href="#2" class="mim-tip-reference" title="Johnston, J. J., van der Smagt, J. J., Rosenfeld, J. A., Pagnamenta, A. T., Alswaid, A., Baker, E. H., Blair, E., Borck, G., Brinkmann, J., Craigen, W., Dung, V. C., Emrick, L., and 25 others. &lt;strong&gt;Autosomal recessive Noonan syndrome associated with biallelic LZTR1 variants.&lt;/strong&gt; Genet. Med. 20: 1175-1185, 2018.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/29469822/&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;29469822&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/gim.2017.249&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="29469822">Johnston et al. (2018)</a> reported 23 patients (21 of whom underwent molecular analysis) from 12 families with autosomal recessive Noonan syndrome. Birth length and birth head circumference was average to large for all children. Nine of 14 patients in whom it was evaluated had developmental delay. Sixteen of 19 had congenital heart defect or valve disease. Variable facial features of Noonan syndrome were reported in all, with 13 of 16 having low-set ears and 16 of 19 having a broad, short neck. Leukemia was reported in 2 families. Several patients presented prenatally with polyhydramnios, cystic hygroma, and/or arthrogryposis. Several patients died in the neonatal period. Cryptorchidism was rarely reported. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=29469822" 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="van der Burgt, I., Brunner, H. &lt;strong&gt;Genetic heterogeneity in Noonan syndrome: evidence for an autosomal recessive form.&lt;/strong&gt; Am. J. Med. Genet. 94: 46-51, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10982482/&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;10982482&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/1096-8628(20000904)94:1&lt;46::aid-ajmg10&gt;3.0.co;2-i&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="10982482">Van der Burgt and Brunner (2000)</a> described 4 Dutch Noonan syndrome patients, 2 male and 2 female, each with unaffected consanguineous parents. All 4 had a typical Noonan syndrome phenotype and presented with hypertrophic obstructive cardiomyopathy at birth. In 2 patients the defect improved, in 1 patient it deteriorated, and in 1 patient it remained constant over 12 years. These patients supported the existence of an autosomal recessive form of Noonan syndrome in which hypertrophic obstructive cardiomyopathy is more frequent than in autosomal dominant Noonan syndrome. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10982482" 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="#4" class="mim-tip-reference" title="Umeki, I., Niihori, T., Abe, T., Kanno, S., Okamoto, N., Mizuno, S., Kurosawa, K., Nagasaki, K., Yoshida, M., Ohashi, H., Inoue, S., Matsubara, Y., Fujiwara, I., Kure, S., Aoki, Y. &lt;strong&gt;Delineation of LZTR1 mutation-positive patients with Noonan syndrome and identification of LZTR1 binding to RAF1-PPP1CB complexes.&lt;/strong&gt; Hum. Genet. 138: 21-35, 2019.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/30368668/&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;30368668&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s00439-018-1951-7&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="30368668">Umeki et al. (2019)</a> reported a patient with Noonan syndrome 2. In addition to distinctive facial features suggestive of Noonan syndrome, she had hypertrophic cardiomyopathy, 5th brachymetapody, and mild intellectual disability. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=30368668" 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>Inheritance</strong>
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<p><a href="#1" class="mim-tip-reference" title="Abdel-Salam, E., Temtamy, S. A. &lt;strong&gt;Familial Turner phenotype.&lt;/strong&gt; J. Pediat. 74: 67-72, 1969.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/5782826/&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;5782826&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0022-3476(69)80009-0&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="5782826">Abdel-Salam and Temtamy (1969)</a> reported 2 sibs with Noonan syndrome from a first-cousin marriage. A deceased female sib may have been affected also. They suggested autosomal recessive inheritance. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=5782826" 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="#3" class="mim-tip-reference" title="Maximilian, C., Ioan, D. M., Fryns, J. P. &lt;strong&gt;A syndrome of mental retardation, short stature, craniofacial anomalie with palpebral ptosis and pulmonary stenosis in three siblings with normal parents: an example of autosomal recessive inheritance of the Noonan phenotype?&lt;/strong&gt; Genet. Counsel. 3: 115-118, 1992.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/1642809/&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;1642809&lt;/a&gt;]" pmid="1642809">Maximilian et al. (1992)</a> reported a family with 4 children, of whom 3, a girl and 2 boys, were thought to have Noonan syndrome. Neither parent had signs of the syndrome. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1642809" 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="van der Burgt, I., Brunner, H. &lt;strong&gt;Genetic heterogeneity in Noonan syndrome: evidence for an autosomal recessive form.&lt;/strong&gt; Am. J. Med. Genet. 94: 46-51, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10982482/&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;10982482&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/1096-8628(20000904)94:1&lt;46::aid-ajmg10&gt;3.0.co;2-i&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="10982482">Van der Burgt and Brunner (2000)</a> reported 4 unrelated Dutch patients with Noonan syndrome who were born of unaffected consanguineous parents, suggesting autosomal recessive inheritance. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10982482" 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>The transmission pattern of Noonan syndrome in the families reported by <a href="#2" class="mim-tip-reference" title="Johnston, J. J., van der Smagt, J. J., Rosenfeld, J. A., Pagnamenta, A. T., Alswaid, A., Baker, E. H., Blair, E., Borck, G., Brinkmann, J., Craigen, W., Dung, V. C., Emrick, L., and 25 others. &lt;strong&gt;Autosomal recessive Noonan syndrome associated with biallelic LZTR1 variants.&lt;/strong&gt; Genet. Med. 20: 1175-1185, 2018.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/29469822/&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;29469822&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/gim.2017.249&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="29469822">Johnston et al. (2018)</a> was consistent with autosomal recessive inheritance. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=29469822" 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><a href="#2" class="mim-tip-reference" title="Johnston, J. J., van der Smagt, J. J., Rosenfeld, J. A., Pagnamenta, A. T., Alswaid, A., Baker, E. H., Blair, E., Borck, G., Brinkmann, J., Craigen, W., Dung, V. C., Emrick, L., and 25 others. &lt;strong&gt;Autosomal recessive Noonan syndrome associated with biallelic LZTR1 variants.&lt;/strong&gt; Genet. Med. 20: 1175-1185, 2018.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/29469822/&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;29469822&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/gim.2017.249&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="29469822">Johnston et al. (2018)</a> reported 17 mutations in 12 families with autosomal recessive Noonan Syndrome. These included missense, nonsense, frameshift, and splice site mutations that occurred in homozygosity or compound heterozygosity. All parents were heterozygous and unaffected. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=29469822" 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="#4" class="mim-tip-reference" title="Umeki, I., Niihori, T., Abe, T., Kanno, S., Okamoto, N., Mizuno, S., Kurosawa, K., Nagasaki, K., Yoshida, M., Ohashi, H., Inoue, S., Matsubara, Y., Fujiwara, I., Kure, S., Aoki, Y. &lt;strong&gt;Delineation of LZTR1 mutation-positive patients with Noonan syndrome and identification of LZTR1 binding to RAF1-PPP1CB complexes.&lt;/strong&gt; Hum. Genet. 138: 21-35, 2019.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/30368668/&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;30368668&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s00439-018-1951-7&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="30368668">Umeki et al. (2019)</a> reported 1 NS2 patient with compound heterozygous mutations in the LZTR1 gene and 6 NS10 patients with heterozygous mutations in LZTR1. All patients had cardiac defects and 71% had hypertrophic cardiomyopathy. Other features were more variable. The patient with NS2 inherited each mutation from one of her unaffected parents. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=30368668" 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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<a id="1" class="mim-anchor"></a>
<a id="Abdel-Salam1969" class="mim-anchor"></a>
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Abdel-Salam, E., Temtamy, S. A.
<strong>Familial Turner phenotype.</strong>
J. Pediat. 74: 67-72, 1969.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/5782826/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">5782826</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=5782826" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/s0022-3476(69)80009-0" target="_blank">Full Text</a>]
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<a id="Johnston2018" class="mim-anchor"></a>
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Johnston, J. J., van der Smagt, J. J., Rosenfeld, J. A., Pagnamenta, A. T., Alswaid, A., Baker, E. H., Blair, E., Borck, G., Brinkmann, J., Craigen, W., Dung, V. C., Emrick, L., and 25 others.
<strong>Autosomal recessive Noonan syndrome associated with biallelic LZTR1 variants.</strong>
Genet. Med. 20: 1175-1185, 2018.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/29469822/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">29469822</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=29469822" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/gim.2017.249" target="_blank">Full Text</a>]
</p>
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<a id="Maximilian1992" class="mim-anchor"></a>
<div class="">
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Maximilian, C., Ioan, D. M., Fryns, J. P.
<strong>A syndrome of mental retardation, short stature, craniofacial anomalie with palpebral ptosis and pulmonary stenosis in three siblings with normal parents: an example of autosomal recessive inheritance of the Noonan phenotype?</strong>
Genet. Counsel. 3: 115-118, 1992.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/1642809/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">1642809</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1642809" 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="Umeki2019" class="mim-anchor"></a>
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Umeki, I., Niihori, T., Abe, T., Kanno, S., Okamoto, N., Mizuno, S., Kurosawa, K., Nagasaki, K., Yoshida, M., Ohashi, H., Inoue, S., Matsubara, Y., Fujiwara, I., Kure, S., Aoki, Y.
<strong>Delineation of LZTR1 mutation-positive patients with Noonan syndrome and identification of LZTR1 binding to RAF1-PPP1CB complexes.</strong>
Hum. Genet. 138: 21-35, 2019.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/30368668/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">30368668</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=30368668" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1007/s00439-018-1951-7" target="_blank">Full Text</a>]
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<a id="van der Burgt2000" class="mim-anchor"></a>
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<p class="mim-text-font">
van der Burgt, I., Brunner, H.
<strong>Genetic heterogeneity in Noonan syndrome: evidence for an autosomal recessive form.</strong>
Am. J. Med. Genet. 94: 46-51, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10982482/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10982482</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10982482" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/1096-8628(20000904)94:1&lt;46::aid-ajmg10&gt;3.0.co;2-i" target="_blank">Full Text</a>]
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Ada Hamosh - updated : 12/17/2018
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<h3>
<span class="mim-font">
<strong>#</strong> 605275
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<h3>
<span class="mim-font">
NOONAN SYNDROME 2; NS2
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<p>
<span class="mim-font">
<em>Alternative titles; symbols</em>
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<span class="mim-font">
NOONAN SYNDROME, AUTOSOMAL RECESSIVE
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<p>
<span class="mim-text-font">
<strong>ORPHA:</strong> 648; &nbsp;
<strong>DO:</strong> 0060580; &nbsp;
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<h4>
<span class="mim-font">
<strong>Phenotype-Gene Relationships</strong>
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</h4>
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<table class="table table-bordered table-condensed small mim-table-padding">
<thead>
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<th>
Location
</th>
<th>
Phenotype
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<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
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<th>
Gene/Locus
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Gene/Locus <br /> MIM number
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<td>
<span class="mim-font">
22q11.21
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<td>
<span class="mim-font">
Noonan syndrome 2
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<td>
<span class="mim-font">
605275
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<td>
<span class="mim-font">
Autosomal recessive
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<td>
<span class="mim-font">
3
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<td>
<span class="mim-font">
LZTR1
</span>
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<td>
<span class="mim-font">
600574
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</tr>
</tbody>
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<h4>
<span class="mim-font">
<strong>TEXT</strong>
</span>
</h4>
<span class="mim-text-font">
<p>A number sign (#) is used with this entry because of evidence that Noonan syndrome-2 (NS2) is caused by homozygous or compound heterozygous mutation in the LZTR1 gene (600574) on chromosome 22q11.</p>
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<span class="mim-font">
<strong>Description</strong>
</span>
</h4>
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<span class="mim-text-font">
<p>Noonan syndrome (NS) is a multiple congenital anomalies syndrome characterized by a typical face, congenital heart disease, and short stature (summary by van der Burgt and Brunner, 2000). </p><p>For a general phenotypic description and a discussion of genetic heterogeneity of Noonan syndrome, see NS1 (163950).</p>
</span>
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<h4>
<span class="mim-font">
<strong>Clinical Features</strong>
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<p>Johnston et al. (2018) reported 23 patients (21 of whom underwent molecular analysis) from 12 families with autosomal recessive Noonan syndrome. Birth length and birth head circumference was average to large for all children. Nine of 14 patients in whom it was evaluated had developmental delay. Sixteen of 19 had congenital heart defect or valve disease. Variable facial features of Noonan syndrome were reported in all, with 13 of 16 having low-set ears and 16 of 19 having a broad, short neck. Leukemia was reported in 2 families. Several patients presented prenatally with polyhydramnios, cystic hygroma, and/or arthrogryposis. Several patients died in the neonatal period. Cryptorchidism was rarely reported. </p><p>Van der Burgt and Brunner (2000) described 4 Dutch Noonan syndrome patients, 2 male and 2 female, each with unaffected consanguineous parents. All 4 had a typical Noonan syndrome phenotype and presented with hypertrophic obstructive cardiomyopathy at birth. In 2 patients the defect improved, in 1 patient it deteriorated, and in 1 patient it remained constant over 12 years. These patients supported the existence of an autosomal recessive form of Noonan syndrome in which hypertrophic obstructive cardiomyopathy is more frequent than in autosomal dominant Noonan syndrome. </p><p>Umeki et al. (2019) reported a patient with Noonan syndrome 2. In addition to distinctive facial features suggestive of Noonan syndrome, she had hypertrophic cardiomyopathy, 5th brachymetapody, and mild intellectual disability. </p>
</span>
<div>
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<div>
<h4>
<span class="mim-font">
<strong>Inheritance</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Abdel-Salam and Temtamy (1969) reported 2 sibs with Noonan syndrome from a first-cousin marriage. A deceased female sib may have been affected also. They suggested autosomal recessive inheritance. </p><p>Maximilian et al. (1992) reported a family with 4 children, of whom 3, a girl and 2 boys, were thought to have Noonan syndrome. Neither parent had signs of the syndrome. </p><p>Van der Burgt and Brunner (2000) reported 4 unrelated Dutch patients with Noonan syndrome who were born of unaffected consanguineous parents, suggesting autosomal recessive inheritance. </p><p>The transmission pattern of Noonan syndrome in the families reported by Johnston et al. (2018) was consistent with autosomal recessive inheritance. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Johnston et al. (2018) reported 17 mutations in 12 families with autosomal recessive Noonan Syndrome. These included missense, nonsense, frameshift, and splice site mutations that occurred in homozygosity or compound heterozygosity. All parents were heterozygous and unaffected. </p><p>Umeki et al. (2019) reported 1 NS2 patient with compound heterozygous mutations in the LZTR1 gene and 6 NS10 patients with heterozygous mutations in LZTR1. All patients had cardiac defects and 71% had hypertrophic cardiomyopathy. Other features were more variable. The patient with NS2 inherited each mutation from one of her unaffected parents. </p>
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<span class="mim-font">
<strong>REFERENCES</strong>
</span>
</h4>
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<div>
<ol>
<li>
<p class="mim-text-font">
Abdel-Salam, E., Temtamy, S. A.
<strong>Familial Turner phenotype.</strong>
J. Pediat. 74: 67-72, 1969.
[PubMed: 5782826]
[Full Text: https://doi.org/10.1016/s0022-3476(69)80009-0]
</p>
</li>
<li>
<p class="mim-text-font">
Johnston, J. J., van der Smagt, J. J., Rosenfeld, J. A., Pagnamenta, A. T., Alswaid, A., Baker, E. H., Blair, E., Borck, G., Brinkmann, J., Craigen, W., Dung, V. C., Emrick, L., and 25 others.
<strong>Autosomal recessive Noonan syndrome associated with biallelic LZTR1 variants.</strong>
Genet. Med. 20: 1175-1185, 2018.
[PubMed: 29469822]
[Full Text: https://doi.org/10.1038/gim.2017.249]
</p>
</li>
<li>
<p class="mim-text-font">
Maximilian, C., Ioan, D. M., Fryns, J. P.
<strong>A syndrome of mental retardation, short stature, craniofacial anomalie with palpebral ptosis and pulmonary stenosis in three siblings with normal parents: an example of autosomal recessive inheritance of the Noonan phenotype?</strong>
Genet. Counsel. 3: 115-118, 1992.
[PubMed: 1642809]
</p>
</li>
<li>
<p class="mim-text-font">
Umeki, I., Niihori, T., Abe, T., Kanno, S., Okamoto, N., Mizuno, S., Kurosawa, K., Nagasaki, K., Yoshida, M., Ohashi, H., Inoue, S., Matsubara, Y., Fujiwara, I., Kure, S., Aoki, Y.
<strong>Delineation of LZTR1 mutation-positive patients with Noonan syndrome and identification of LZTR1 binding to RAF1-PPP1CB complexes.</strong>
Hum. Genet. 138: 21-35, 2019.
[PubMed: 30368668]
[Full Text: https://doi.org/10.1007/s00439-018-1951-7]
</p>
</li>
<li>
<p class="mim-text-font">
van der Burgt, I., Brunner, H.
<strong>Genetic heterogeneity in Noonan syndrome: evidence for an autosomal recessive form.</strong>
Am. J. Med. Genet. 94: 46-51, 2000.
[PubMed: 10982482]
[Full Text: https://doi.org/10.1002/1096-8628(20000904)94:1&lt;46::aid-ajmg10&gt;3.0.co;2-i]
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Ada Hamosh - updated : 12/17/2018
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