Arnold Chiari malformation.
D000328:Adult; D001139:Arnold-Chiari Malformation / Q000000981:diagnostic imaging / Q000601:surgery*; D001933:Brain Stem / Q000002:abnormalities; D002531:Cerebellum / Q000002:abnormalities; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011182:Postoperative Care; D011300:Preoperative Care; D011859:Radiography