ILAE Logo
Epilepsy Diagnosis Logo

HEMIMEGALENCEPHALY

GENETICS

PATTERN OF INHERITANCE

De novo acquired somatic gene abnormality.

KNOWN GENES

Hemimegalencephaly has been linked with acquired somatic gene abnormalities in genes involved in the PI3K/AKT/mTOR pathway, including PIK3CA, AKT3, TSC1, TSC2. These gene abnormalities have been found directly in a small percentage of brain cells from the abnormal hemisphere.

FAMILY HISTORY

May be present (see above).

Feedback | Home | Contact Us | Privacy | Terms & Conditions of Use | Log In For Videos
Creative Commons License
This website is owned by the International League Against Epilepsy. Text on this website, last updated June 30, 2024,
is available under a Creative Commons Attribution-ShareAlike 4.0 International License,
EXCEPTING all videos and images, which remain copyrighted by the International League Against Epilepsy.