nih-gov/www.ncbi.nlm.nih.gov/omim/156250

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Entry
- #156250 - METACHONDROMATOSIS; METCDS
- OMIM
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<span class="h4">#156250</span>
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<strong>Table of Contents</strong>
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<li role="presentation">
<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/156250"><strong>Clinical Synopsis</strong></a>
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<a href="#text"><strong>Text</strong></a>
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<li role="presentation" style="margin-left: 1em">
<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="#mapping">Mapping</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="#seeAlso"><strong>See Also</strong></a>
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<li role="presentation">
<a href="#references"><strong>References</strong></a>
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<li role="presentation">
<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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<strong>SNOMEDCT:</strong> 205481009<br />
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156250
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METACHONDROMATOSIS; METCDS
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<a href="/geneMap/12/823?start=-3&limit=10&highlight=823">
12q24.13
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Metachondromatosis
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<a href="/entry/156250"> 156250 </a>
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<abbr class="mim-tip-hint" title="Autosomal dominant">AD</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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PTPN11
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<a href="/entry/176876"> 176876 </a>
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<strong> Skel </strong>
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- Multiple exostoses, esp. digits<br /> - Multiple enchondromatosis <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/268274005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">268274005</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q78.4" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q78.4</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0014084&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0014084</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0005701" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0005701</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0005701" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0005701</a>]</span><br />
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<strong> Joints </strong>
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- No joint deformity, or subluxation<br />
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<strong> Misc </strong>
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- Exostoses point toward nearby joint<br /> - Exostoses may resolve spontaneously<br /> - No shortening or bowing of long bones<br />
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- Striations in metaphyses of long bones and iliac crests<br />
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<strong> Inheritance </strong>
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- 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 />
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<p>A number sign (#) is used with this entry because of evidence that metachondromatosis (METCDS) is caused by heterozygous mutation in the PTPN11 gene (<a href="/entry/176876">176876</a>) on chromosome 12q24.</p>
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<p>Metachondromatosis is characterized by exostoses (osteochondromas), commonly of the hands and feet, and enchondromas of long bone metaphyses and iliac crests (summary by <a href="#9" class="mim-tip-reference" title="Sobreira, N. L. M., Cirulli, E. T., Avramopoulos, D., Wohler, E., Oswald, G. L., Stevens, E. L., Ge, D., Shianna, K. V., Smith, J. P., Maia, J. M., Gumbs, C. E., Pevsner, J., Thomas, G., Valle, D., Hoover-Fong, J. E., Goldstein, D. B. &lt;strong&gt;Whole-genome sequencing of a single proband together with linkage analysis identifies a mendelian disease gene.&lt;/strong&gt; PLoS Genet. 6: e1000991, 2010. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/20577567/&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;20577567&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=20577567[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1371/journal.pgen.1000991&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="20577567">Sobreira et al., 2010</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20577567" 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="#8" class="mim-tip-reference" title="Maroteaux, P. &lt;strong&gt;La metachondromatose.&lt;/strong&gt; Z. Kinderheilk. 109: 246-261, 1971.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/5313319/&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;5313319&lt;/a&gt;]" pmid="5313319">Maroteaux (1971)</a> described 2 families with skeletal radiologic features of both multiple exostoses (<a href="/entry/133700">133700</a>) and Ollier disease (<a href="/entry/166000">166000</a>). He called the disorder metachondromatosis and suggested autosomal dominant inheritance on the basis of 1 family with 5 affected persons. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=5313319" 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="#7" class="mim-tip-reference" title="Lachman, R. S., Cohen, A., Hollister, D. W., Rimoin, D. L. &lt;strong&gt;Metachondromatosis.&lt;/strong&gt; Birth Defects Orig. Art. Ser. X(9): 171-178, 1974."None>Lachman et al. (1974)</a> reported a case. <a href="#6" class="mim-tip-reference" title="Kennedy, L. A. &lt;strong&gt;Metachondromatosis.&lt;/strong&gt; Radiology 148: 117-118, 1983.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/6602353/&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;6602353&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1148/radiology.148.1.6602353&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="6602353">Kennedy (1983)</a> presented the case of a 9.5-year-old boy in whom 'bumps' on the hands, feet and knees had been noted at age 5. In the next few years, some of these enlarged, new ones appeared, and others regressed. Peculiar striations were noted radiologically in the metaphyses of the long bones and iliac crests. The mother had a similar although milder history; x-ray showed a single exostosis in the wrist. The maternal grandfather had had lesions of the hands, feet, and knees, but none was evident at the time of radiologic study. Two cousins were said to have similar lesions. Differentiation from multiple exostoses of the classic type (<a href="/entry/133700">133700</a>) is important because of the usual regression with little or minimal residual deformity. Involvement of the hands and feet is the rule in metachondromatosis but is said by <a href="#6" class="mim-tip-reference" title="Kennedy, L. A. &lt;strong&gt;Metachondromatosis.&lt;/strong&gt; Radiology 148: 117-118, 1983.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/6602353/&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;6602353&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1148/radiology.148.1.6602353&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="6602353">Kennedy (1983)</a> to be unusual in classic multiple exostoses. Furthermore, in metachondromatosis, the exostoses point toward the epiphysis. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=6602353" 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="Dorst, J. P. &lt;strong&gt;Personal Communication.&lt;/strong&gt; Baltimore, Md. 6/14/1983."None>Dorst (1983)</a> observed metachondromatosis in a brother and sister of Korean extraction. The radiologic findings combined those of multiple exostoses, multiple enchondromatosis (Ollier disease), and dysplasia epiphysealis hemimelica (<a href="/entry/127800">127800</a>). No other affected relatives were known but the parents were not available for study.</p><p>In the family studied by <a href="#10" class="mim-tip-reference" title="Vanek, V. J. &lt;strong&gt;Metachondromatose: 3 Beobachtungen mit erblichen Vorkommen.&lt;/strong&gt; Beitr. Orthop. Traumatol. 29: 103-107, 1982.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/6979336/&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;6979336&lt;/a&gt;]" pmid="6979336">Vanek (1982)</a>, the mother of 2 of the affected persons had a history of exostoses as a child, which regressed as she grew older. X-ray studies showed no peripheral exostoses but the proximal end of one humerus was wide and a first metatarsal was abnormally thin. A brother was said also to have had nodular growths near joints as a child. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=6979336" 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="#1" class="mim-tip-reference" title="Bassett, G. S., Cowell, H. R. &lt;strong&gt;Metachondromatosis: report of four cases.&lt;/strong&gt; J. Bone Joint Surg. Am. 67: 811-814, 1985.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/3873457/&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;3873457&lt;/a&gt;]" pmid="3873457">Bassett and Cowell (1985)</a> studied 4 members of a kindred that had at least 8 cases in all. They pointed out that the enchondromatous lesions involve the iliac crest and metaphyseal region of the long bones of the lower extremities as in Ollier disease. The exostoses of metachondromatosis, unlike those of hereditary multiple exostosis, point toward the nearby joint and do not cause shortening or bowing of the long bone, joint deformity, or subluxation. They affect particularly the digits and may resolve spontaneously. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=3873457" 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>Metachondromatosis is an autosomal dominant disorder with incomplete penetrance (<a href="#2" class="mim-tip-reference" title="Bowen, M. E., Boyden, E. D., Holm, I. A., Campos-Xavier, B., Bonafe, L., Superti-Furga, A., Ikegawa, S., Cormier-Daire, V., Bovee, J. V., Pansuriya, T. C., de Sousa, S. B., Savarirayan, R., and 16 others. &lt;strong&gt;Loss-of-function mutations in PTPN11 cause metachondromatosis, but not Ollier disease or Maffucci syndrome.&lt;/strong&gt; PLoS Genet. 7: e1002050, 2011. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21533187/&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;21533187&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=21533187[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1371/journal.pgen.1002050&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="21533187">Bowen et al., 2011</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=21533187" 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>Mapping</strong>
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<p><a href="#9" class="mim-tip-reference" title="Sobreira, N. L. M., Cirulli, E. T., Avramopoulos, D., Wohler, E., Oswald, G. L., Stevens, E. L., Ge, D., Shianna, K. V., Smith, J. P., Maia, J. M., Gumbs, C. E., Pevsner, J., Thomas, G., Valle, D., Hoover-Fong, J. E., Goldstein, D. B. &lt;strong&gt;Whole-genome sequencing of a single proband together with linkage analysis identifies a mendelian disease gene.&lt;/strong&gt; PLoS Genet. 6: e1000991, 2010. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/20577567/&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;20577567&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=20577567[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1371/journal.pgen.1000991&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="20577567">Sobreira et al. (2010)</a> performed a genomewide scan in a 5-generation family segregating autosomal dominant metachondromatosis and identified 6 regions showing suggestive evidence for linkage, including chromosome 7p14.1 (maximum lod score, 2.5), 8q24.1, and 12q23 (lod score of 1.8 for both), and 2p25, 5q12.1, and 9q31.1-q33.1 (lod scores between 1.0 and 1.5). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20577567" 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="#2" class="mim-tip-reference" title="Bowen, M. E., Boyden, E. D., Holm, I. A., Campos-Xavier, B., Bonafe, L., Superti-Furga, A., Ikegawa, S., Cormier-Daire, V., Bovee, J. V., Pansuriya, T. C., de Sousa, S. B., Savarirayan, R., and 16 others. &lt;strong&gt;Loss-of-function mutations in PTPN11 cause metachondromatosis, but not Ollier disease or Maffucci syndrome.&lt;/strong&gt; PLoS Genet. 7: e1002050, 2011. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21533187/&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;21533187&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=21533187[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1371/journal.pgen.1002050&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="21533187">Bowen et al. (2011)</a> performed linkage analysis with high-density SNP arrays in a family with metachondromatosis and identified an 8.6-Mb interval on chromosome 12 that attained a maximum lod score of 2.7. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=21533187" 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>Molecular Genetics</strong>
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<p><a href="#9" class="mim-tip-reference" title="Sobreira, N. L. M., Cirulli, E. T., Avramopoulos, D., Wohler, E., Oswald, G. L., Stevens, E. L., Ge, D., Shianna, K. V., Smith, J. P., Maia, J. M., Gumbs, C. E., Pevsner, J., Thomas, G., Valle, D., Hoover-Fong, J. E., Goldstein, D. B. &lt;strong&gt;Whole-genome sequencing of a single proband together with linkage analysis identifies a mendelian disease gene.&lt;/strong&gt; PLoS Genet. 6: e1000991, 2010. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/20577567/&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;20577567&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=20577567[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1371/journal.pgen.1000991&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="20577567">Sobreira et al. (2010)</a> performed whole-genome sequencing in 1 affected individual from a 5-generation family with metachondromatosis and identified a heterozygous 11-bp deletion in the PTPN11 gene (<a href="/entry/176876#0025">176876.0025</a>); analysis of family members confirmed that the deletion segregated with the disease. Sequencing of the PTPN11 gene in another 3-generation family with autosomal dominant metachondromatosis revealed a heterozygous nonsense mutation (<a href="/entry/176876#0026">176876.0026</a>) in affected individuals. Neither mutation was detected in 469 controls. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20577567" 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="#2" class="mim-tip-reference" title="Bowen, M. E., Boyden, E. D., Holm, I. A., Campos-Xavier, B., Bonafe, L., Superti-Furga, A., Ikegawa, S., Cormier-Daire, V., Bovee, J. V., Pansuriya, T. C., de Sousa, S. B., Savarirayan, R., and 16 others. &lt;strong&gt;Loss-of-function mutations in PTPN11 cause metachondromatosis, but not Ollier disease or Maffucci syndrome.&lt;/strong&gt; PLoS Genet. 7: e1002050, 2011. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21533187/&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;21533187&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=21533187[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1371/journal.pgen.1002050&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="21533187">Bowen et al. (2011)</a> used a targeted array to capture exons and promoter sequences from an 8.6-Mb linked interval in 16 participants from 11 metachondromatosis families, and sequenced the captured DNA using high-throughput parallel sequencing technologies. They identified heterozygous putative loss-of-function mutations in the PTPN11 gene in 4 of the 11 families (<a href="/entry/176876#0028">176876.0028</a>-<a href="/entry/176876#0031">176876.0031</a>). Sanger sequence analysis of PTPN11 coding regions in the 7 remaining families and in 6 additional metachondromatosis families identified novel heterozygous mutations in 4 families (<a href="/entry/176876#0032">176876.0032</a>-<a href="/entry/176876#0035">176876.0035</a>). Copy number analysis of sequencing reads from a second targeted capture that included the entire PTPN11 gene identified an metachondromatosis patient with a 15-kb deletion spanning exon 7 of PTPN11 (<a href="/entry/176876#0036">176876.0036</a>). In total, of 17 metachondromatosis families, <a href="#2" class="mim-tip-reference" title="Bowen, M. E., Boyden, E. D., Holm, I. A., Campos-Xavier, B., Bonafe, L., Superti-Furga, A., Ikegawa, S., Cormier-Daire, V., Bovee, J. V., Pansuriya, T. C., de Sousa, S. B., Savarirayan, R., and 16 others. &lt;strong&gt;Loss-of-function mutations in PTPN11 cause metachondromatosis, but not Ollier disease or Maffucci syndrome.&lt;/strong&gt; PLoS Genet. 7: e1002050, 2011. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21533187/&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;21533187&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=21533187[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1371/journal.pgen.1002050&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="21533187">Bowen et al. (2011)</a> identified mutations in 11 (5 frameshift, 2 nonsense, 3 splice site, and 1 large deletion). Each family had a different mutation, and the mutations were scattered across the gene. Microdissected metachondromatosis lesions from 2 patients with PTPN11 mutations demonstrated loss of heterozygosity for the wildtype allele. <a href="#2" class="mim-tip-reference" title="Bowen, M. E., Boyden, E. D., Holm, I. A., Campos-Xavier, B., Bonafe, L., Superti-Furga, A., Ikegawa, S., Cormier-Daire, V., Bovee, J. V., Pansuriya, T. C., de Sousa, S. B., Savarirayan, R., and 16 others. &lt;strong&gt;Loss-of-function mutations in PTPN11 cause metachondromatosis, but not Ollier disease or Maffucci syndrome.&lt;/strong&gt; PLoS Genet. 7: e1002050, 2011. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21533187/&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;21533187&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=21533187[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1371/journal.pgen.1002050&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="21533187">Bowen et al. (2011)</a> suggested that metachondromatosis may be genetically heterogeneous because 1 familial and 5 sporadically occurring cases lacked obvious disease-causing PTPN11 mutations. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=21533187" 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="seeAlso" class="mim-anchor"></a>
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<a href="#De1976" class="mim-tip-reference" title="De la Cruz, J., Garcia-Castro, J. M. &lt;strong&gt;Metachondromatosis: a diagnostic dilemma: apropos of studies in a Puerto Rican family.&lt;/strong&gt; Bol. Assoc. Med. PR 68: 340-344, 1976.">De la Cruz and Garcia-Castro (1976)</a>; <a href="#Giedion1975" class="mim-tip-reference" title="Giedion, A., Kesztler, R., Muggiasca, F. &lt;strong&gt;The widened spectrum of multiple cartilaginous exostosis (MCE).&lt;/strong&gt; Pediat. Radiol. 3: 93-100, 1975.">Giedion et al. (1975)</a>
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<a id="references"class="mim-anchor"></a>
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<a id="Bassett1985" class="mim-anchor"></a>
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Bassett, G. S., Cowell, H. R.
<strong>Metachondromatosis: report of four cases.</strong>
J. Bone Joint Surg. Am. 67: 811-814, 1985.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/3873457/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">3873457</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=3873457" 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="Bowen2011" class="mim-anchor"></a>
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Bowen, M. E., Boyden, E. D., Holm, I. A., Campos-Xavier, B., Bonafe, L., Superti-Furga, A., Ikegawa, S., Cormier-Daire, V., Bovee, J. V., Pansuriya, T. C., de Sousa, S. B., Savarirayan, R., and 16 others.
<strong>Loss-of-function mutations in PTPN11 cause metachondromatosis, but not Ollier disease or Maffucci syndrome.</strong>
PLoS Genet. 7: e1002050, 2011. Note: Electronic Article.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/21533187/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">21533187</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=21533187[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=21533187" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1371/journal.pgen.1002050" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="3" class="mim-anchor"></a>
<a id="De la Cruz1976" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
De la Cruz, J., Garcia-Castro, J. M.
<strong>Metachondromatosis: a diagnostic dilemma: apropos of studies in a Puerto Rican family.</strong>
Bol. Assoc. Med. PR 68: 340-344, 1976.
</p>
</div>
</li>
<li>
<a id="4" class="mim-anchor"></a>
<a id="Dorst1983" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Dorst, J. P.
<strong>Personal Communication.</strong>
Baltimore, Md. 6/14/1983.
</p>
</div>
</li>
<li>
<a id="5" class="mim-anchor"></a>
<a id="Giedion1975" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Giedion, A., Kesztler, R., Muggiasca, F.
<strong>The widened spectrum of multiple cartilaginous exostosis (MCE).</strong>
Pediat. Radiol. 3: 93-100, 1975.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/1085923/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">1085923</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1085923" 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/BF01000121" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="6" class="mim-anchor"></a>
<a id="Kennedy1983" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Kennedy, L. A.
<strong>Metachondromatosis.</strong>
Radiology 148: 117-118, 1983.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/6602353/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">6602353</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=6602353" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1148/radiology.148.1.6602353" target="_blank">Full Text</a>]
</p>
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<a id="7" class="mim-anchor"></a>
<a id="Lachman1974" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Lachman, R. S., Cohen, A., Hollister, D. W., Rimoin, D. L.
<strong>Metachondromatosis.</strong>
Birth Defects Orig. Art. Ser. X(9): 171-178, 1974.
</p>
</div>
</li>
<li>
<a id="8" class="mim-anchor"></a>
<a id="Maroteaux1971" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Maroteaux, P.
<strong>La metachondromatose.</strong>
Z. Kinderheilk. 109: 246-261, 1971.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/5313319/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">5313319</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=5313319" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
</p>
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<a id="9" class="mim-anchor"></a>
<a id="Sobreira2010" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Sobreira, N. L. M., Cirulli, E. T., Avramopoulos, D., Wohler, E., Oswald, G. L., Stevens, E. L., Ge, D., Shianna, K. V., Smith, J. P., Maia, J. M., Gumbs, C. E., Pevsner, J., Thomas, G., Valle, D., Hoover-Fong, J. E., Goldstein, D. B.
<strong>Whole-genome sequencing of a single proband together with linkage analysis identifies a mendelian disease gene.</strong>
PLoS Genet. 6: e1000991, 2010. Note: Electronic Article.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/20577567/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">20577567</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=20577567[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20577567" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1371/journal.pgen.1000991" target="_blank">Full Text</a>]
</p>
</div>
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<a id="10" class="mim-anchor"></a>
<a id="Vanek1982" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Vanek, V. J.
<strong>Metachondromatose: 3 Beobachtungen mit erblichen Vorkommen.</strong>
Beitr. Orthop. Traumatol. 29: 103-107, 1982.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/6979336/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">6979336</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=6979336" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
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Nara Sobreira - updated : 5/15/2012
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Marla J. F. O'Neill - updated : 6/28/2010
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Victor A. McKusick : 6/2/1986
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carol : 05/21/2019
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carol : 05/25/2012<br>carol : 5/15/2012<br>carol : 5/15/2012<br>terry : 1/13/2011<br>carol : 6/28/2010<br>terry : 6/28/2010<br>carol : 9/2/2009<br>mimadm : 11/6/1994<br>warfield : 4/12/1994<br>supermim : 3/16/1992<br>carol : 3/3/1992<br>supermim : 3/20/1990<br>ddp : 10/27/1989
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<h3>
<span class="mim-font">
<strong>#</strong> 156250
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</h3>
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<div>
<h3>
<span class="mim-font">
METACHONDROMATOSIS; METCDS
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</h3>
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<div>
<br />
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<p>
<span class="mim-text-font">
<strong>SNOMEDCT:</strong> 205481009; &nbsp;
<strong>ORPHA:</strong> 2499; &nbsp;
<strong>DO:</strong> 0111512; &nbsp;
</span>
</p>
</div>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Phenotype-Gene Relationships</strong>
</span>
</h4>
<div>
<table class="table table-bordered table-condensed 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">
12q24.13
</span>
</td>
<td>
<span class="mim-font">
Metachondromatosis
</span>
</td>
<td>
<span class="mim-font">
156250
</span>
</td>
<td>
<span class="mim-font">
Autosomal dominant
</span>
</td>
<td>
<span class="mim-font">
3
</span>
</td>
<td>
<span class="mim-font">
PTPN11
</span>
</td>
<td>
<span class="mim-font">
176876
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
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<div>
<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 metachondromatosis (METCDS) is caused by heterozygous mutation in the PTPN11 gene (176876) on chromosome 12q24.</p>
</span>
<div>
<br />
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<div>
<h4>
<span class="mim-font">
<strong>Description</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Metachondromatosis is characterized by exostoses (osteochondromas), commonly of the hands and feet, and enchondromas of long bone metaphyses and iliac crests (summary by Sobreira et al., 2010). </p>
</span>
<div>
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<h4>
<span class="mim-font">
<strong>Clinical Features</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Maroteaux (1971) described 2 families with skeletal radiologic features of both multiple exostoses (133700) and Ollier disease (166000). He called the disorder metachondromatosis and suggested autosomal dominant inheritance on the basis of 1 family with 5 affected persons. </p><p>Lachman et al. (1974) reported a case. Kennedy (1983) presented the case of a 9.5-year-old boy in whom 'bumps' on the hands, feet and knees had been noted at age 5. In the next few years, some of these enlarged, new ones appeared, and others regressed. Peculiar striations were noted radiologically in the metaphyses of the long bones and iliac crests. The mother had a similar although milder history; x-ray showed a single exostosis in the wrist. The maternal grandfather had had lesions of the hands, feet, and knees, but none was evident at the time of radiologic study. Two cousins were said to have similar lesions. Differentiation from multiple exostoses of the classic type (133700) is important because of the usual regression with little or minimal residual deformity. Involvement of the hands and feet is the rule in metachondromatosis but is said by Kennedy (1983) to be unusual in classic multiple exostoses. Furthermore, in metachondromatosis, the exostoses point toward the epiphysis. </p><p>Dorst (1983) observed metachondromatosis in a brother and sister of Korean extraction. The radiologic findings combined those of multiple exostoses, multiple enchondromatosis (Ollier disease), and dysplasia epiphysealis hemimelica (127800). No other affected relatives were known but the parents were not available for study.</p><p>In the family studied by Vanek (1982), the mother of 2 of the affected persons had a history of exostoses as a child, which regressed as she grew older. X-ray studies showed no peripheral exostoses but the proximal end of one humerus was wide and a first metatarsal was abnormally thin. A brother was said also to have had nodular growths near joints as a child. </p><p>Bassett and Cowell (1985) studied 4 members of a kindred that had at least 8 cases in all. They pointed out that the enchondromatous lesions involve the iliac crest and metaphyseal region of the long bones of the lower extremities as in Ollier disease. The exostoses of metachondromatosis, unlike those of hereditary multiple exostosis, point toward the nearby joint and do not cause shortening or bowing of the long bone, joint deformity, or subluxation. They affect particularly the digits and may resolve spontaneously. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Inheritance</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Metachondromatosis is an autosomal dominant disorder with incomplete penetrance (Bowen et al., 2011). </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Mapping</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Sobreira et al. (2010) performed a genomewide scan in a 5-generation family segregating autosomal dominant metachondromatosis and identified 6 regions showing suggestive evidence for linkage, including chromosome 7p14.1 (maximum lod score, 2.5), 8q24.1, and 12q23 (lod score of 1.8 for both), and 2p25, 5q12.1, and 9q31.1-q33.1 (lod scores between 1.0 and 1.5). </p><p>Bowen et al. (2011) performed linkage analysis with high-density SNP arrays in a family with metachondromatosis and identified an 8.6-Mb interval on chromosome 12 that attained a maximum lod score of 2.7. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Sobreira et al. (2010) performed whole-genome sequencing in 1 affected individual from a 5-generation family with metachondromatosis and identified a heterozygous 11-bp deletion in the PTPN11 gene (176876.0025); analysis of family members confirmed that the deletion segregated with the disease. Sequencing of the PTPN11 gene in another 3-generation family with autosomal dominant metachondromatosis revealed a heterozygous nonsense mutation (176876.0026) in affected individuals. Neither mutation was detected in 469 controls. </p><p>Bowen et al. (2011) used a targeted array to capture exons and promoter sequences from an 8.6-Mb linked interval in 16 participants from 11 metachondromatosis families, and sequenced the captured DNA using high-throughput parallel sequencing technologies. They identified heterozygous putative loss-of-function mutations in the PTPN11 gene in 4 of the 11 families (176876.0028-176876.0031). Sanger sequence analysis of PTPN11 coding regions in the 7 remaining families and in 6 additional metachondromatosis families identified novel heterozygous mutations in 4 families (176876.0032-176876.0035). Copy number analysis of sequencing reads from a second targeted capture that included the entire PTPN11 gene identified an metachondromatosis patient with a 15-kb deletion spanning exon 7 of PTPN11 (176876.0036). In total, of 17 metachondromatosis families, Bowen et al. (2011) identified mutations in 11 (5 frameshift, 2 nonsense, 3 splice site, and 1 large deletion). Each family had a different mutation, and the mutations were scattered across the gene. Microdissected metachondromatosis lesions from 2 patients with PTPN11 mutations demonstrated loss of heterozygosity for the wildtype allele. Bowen et al. (2011) suggested that metachondromatosis may be genetically heterogeneous because 1 familial and 5 sporadically occurring cases lacked obvious disease-causing PTPN11 mutations. </p>
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>See Also:</strong>
</span>
</h4>
<span class="mim-text-font">
De la Cruz and Garcia-Castro (1976); Giedion et al. (1975)
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>REFERENCES</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<ol>
<li>
<p class="mim-text-font">
Bassett, G. S., Cowell, H. R.
<strong>Metachondromatosis: report of four cases.</strong>
J. Bone Joint Surg. Am. 67: 811-814, 1985.
[PubMed: 3873457]
</p>
</li>
<li>
<p class="mim-text-font">
Bowen, M. E., Boyden, E. D., Holm, I. A., Campos-Xavier, B., Bonafe, L., Superti-Furga, A., Ikegawa, S., Cormier-Daire, V., Bovee, J. V., Pansuriya, T. C., de Sousa, S. B., Savarirayan, R., and 16 others.
<strong>Loss-of-function mutations in PTPN11 cause metachondromatosis, but not Ollier disease or Maffucci syndrome.</strong>
PLoS Genet. 7: e1002050, 2011. Note: Electronic Article.
[PubMed: 21533187]
[Full Text: https://doi.org/10.1371/journal.pgen.1002050]
</p>
</li>
<li>
<p class="mim-text-font">
De la Cruz, J., Garcia-Castro, J. M.
<strong>Metachondromatosis: a diagnostic dilemma: apropos of studies in a Puerto Rican family.</strong>
Bol. Assoc. Med. PR 68: 340-344, 1976.
</p>
</li>
<li>
<p class="mim-text-font">
Dorst, J. P.
<strong>Personal Communication.</strong>
Baltimore, Md. 6/14/1983.
</p>
</li>
<li>
<p class="mim-text-font">
Giedion, A., Kesztler, R., Muggiasca, F.
<strong>The widened spectrum of multiple cartilaginous exostosis (MCE).</strong>
Pediat. Radiol. 3: 93-100, 1975.
[PubMed: 1085923]
[Full Text: https://doi.org/10.1007/BF01000121]
</p>
</li>
<li>
<p class="mim-text-font">
Kennedy, L. A.
<strong>Metachondromatosis.</strong>
Radiology 148: 117-118, 1983.
[PubMed: 6602353]
[Full Text: https://doi.org/10.1148/radiology.148.1.6602353]
</p>
</li>
<li>
<p class="mim-text-font">
Lachman, R. S., Cohen, A., Hollister, D. W., Rimoin, D. L.
<strong>Metachondromatosis.</strong>
Birth Defects Orig. Art. Ser. X(9): 171-178, 1974.
</p>
</li>
<li>
<p class="mim-text-font">
Maroteaux, P.
<strong>La metachondromatose.</strong>
Z. Kinderheilk. 109: 246-261, 1971.
[PubMed: 5313319]
</p>
</li>
<li>
<p class="mim-text-font">
Sobreira, N. L. M., Cirulli, E. T., Avramopoulos, D., Wohler, E., Oswald, G. L., Stevens, E. L., Ge, D., Shianna, K. V., Smith, J. P., Maia, J. M., Gumbs, C. E., Pevsner, J., Thomas, G., Valle, D., Hoover-Fong, J. E., Goldstein, D. B.
<strong>Whole-genome sequencing of a single proband together with linkage analysis identifies a mendelian disease gene.</strong>
PLoS Genet. 6: e1000991, 2010. Note: Electronic Article.
[PubMed: 20577567]
[Full Text: https://doi.org/10.1371/journal.pgen.1000991]
</p>
</li>
<li>
<p class="mim-text-font">
Vanek, V. J.
<strong>Metachondromatose: 3 Beobachtungen mit erblichen Vorkommen.</strong>
Beitr. Orthop. Traumatol. 29: 103-107, 1982.
[PubMed: 6979336]
</p>
</li>
</ol>
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</div>
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Contributors:
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<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Nara Sobreira - updated : 5/15/2012<br>Marla J. F. O&#x27;Neill - updated : 6/28/2010
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Creation Date:
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<span class="mim-text-font">
Victor A. McKusick : 6/2/1986
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NOTE: OMIM is intended for use primarily by physicians and other professionals concerned with genetic disorders, by genetics researchers,
and by advanced students in science and medicine. While the OMIM database is open to the public, users seeking information about a personal
medical or genetic condition are urged to consult with a qualified physician for diagnosis and for answers to personal questions.
<br />
OMIM<sup>&reg;</sup> and Online Mendelian Inheritance in Man<sup>&reg;</sup> are registered trademarks of the Johns Hopkins University.
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Copyright<sup>&reg;</sup> 1966-2025 Johns Hopkins University.
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