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Start free with EleplanCohen-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
ICD-10 codes
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
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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