title: Infantile spasms associated with hemihypsarrhythmia and hemimegalencephaly.
abstract: A case of unilateral megalencephaly in a four-week-old child with infantile spasms and hemihypsarrhythmia is presented. The histological and histometrical investigations showed signs of immaturity in the cortex of the megalencephalic hemisphere.
mesh_terms: D001921:Brain / Q000002:abnormalities* / Q000473:pathology; D004569:Electroencephalography; D007839:Functional Laterality; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009474:Neurons / Q000648:ultrastructure; D013036:Spasms, Infantile / Q000473:pathology*