Subependymal grey matter heterotopia

Case contributed by Abdallah Al Khateeb


New onset seizures.

Patient Data

Age: 18 years
Gender: Male

Diffuse undulating subependymal nodules lining both lateral ventricles, showing iso-intense signal to gray matter on all pulse sequences. In addition, several gray matter foci are seen in both corona radiata. 

Case Discussion

This is the classical appearance of the most common type of grey matter heterotopia, termed subependymal heterotopia.

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