Hemimegalencephaly: cranial sonographic findings in neonates.
Hemimegalencephaly is a rare neuronal migration disorder characterized by overgrowth of part or all of 1 cerebral hemisphere. Lissencephaly, pachygyria, polymicrogyria, heterotopia, and glial abnormalities are usually noted pathologically in the enlarged hemisphere. We report the sonographic changes associated with hemimegalencephaly in 2 neonates presenting with seizures and correlate these changes with the magnetic resonance imaging findings.
Hung
Po-Cheng
PC
Division of Pediatric Neurology, Chang Gung Children's Hospital, College of Medicine, Chang Gung University, 5, Fu-Hsing St., Kwei-Shan, Taoyuan, Taiwan.
Wang
Huei-Shyong
HS
D001921:Brain / Q000002:abnormalities*; D004453:Echoencephalography; D005260:Female; D006801:Humans; D007231:Infant, Newborn