" /> De Grouchy syndrome - CISMeF





Preferred Label : De Grouchy syndrome;

ICD-11 definition : Monosomy 18p refers to a chromosomal disorder resulting from the deletion of all or part of the short arm of chromosome 18. The dysmorphic syndrome is very moderate and non-specific. The main clinical features are short stature, round face with short philtrum, palpebral ptosis and large ears with detached pinnae. Intellectual deficiency is mild to moderate. A small subset of patients, about 10 to 15 percent of cases, present with severe brain/facial malformations evocative of holoprosencephaly spectrum disorders.;

ICD-11 synonym : 18p deletion syndrome;

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Monosomy 18p refers to a chromosomal disorder resulting from the deletion of all or part of the short arm of chromosome 18. The dysmorphic syndrome is very moderate and non-specific. The main clinical features are short stature, round face with short philtrum, palpebral ptosis and large ears with detached pinnae. Intellectual deficiency is mild to moderate. A small subset of patients, about 10 to 15 percent of cases, present with severe brain/facial malformations evocative of holoprosencephaly spectrum disorders.

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28/07/2025


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