Familial megalencephaly.
D000328:Adult; D004569:Electroencephalography; D005145:Face; D006801:Humans; D008607:Intellectual Disability / Q000209:etiology; D008297:Male; D011011:Pneumoencephalography; D012640:Seizures / Q000209:etiology; D012886:Skull / Q000002:abnormalities*