Cohen-Gibson syndrome

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Cohen-Gibson syndrome

ORPHA:659396Malformation syndrome

Also called EED-related overgrowth syndrome

What it is

A rare PRC-2 complex-related overgrowth spectrum disorder characterized by tall stature, intellectual disability (more severe than other diseases-Weaver syndrome and Imagawa-Matsumoto syndome in the spectrum), persistent dysmorphic features (including hypertelorism, large fleshy ears, retrognathia, crease between the mouth and the chin) that remains distinguishable in adulthood, severe musculoskeletal abnormalities (including kyphosis and/or scoliosis, abnormalities of the cervical spine, restricted joint movement and unusually large hands). Cardiac problems, cryptorchidism and umbilical hernias are more frequent whereas presence of tumors is less frequent compared to other diseases in the spectrum.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Antenatal, Neonatal
Inheritance
Autosomal dominant
Classified as
Malformation syndrome

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Gene

EEDDisease-causing germline mutation(s)

ICD-10 codes

Q87.3filed under a broader ICD-10 category — shared with 40 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references

MONDO 0060510MONDO 60510OMIM 617561UMLS C4479654

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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