ABSTRACT
Images 11-1 and 11-2 The seizure focus may occasionally be a malformation of the brain. This may be present as heterotopic gray matter foci (Image 11-1; green arrow) such as those seen in the brain of this 52-year-old mentally disabled man who had a history of seizures. These gray matter heterotopia often occur in a subependymal distribution (Image 11-2; green arrows).
