The origin of porencephaly as demonstrated by sector scan.
D003560:Cysts / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000175:diagnosis* / Q000473:pathology; D012189:Retrospective Studies; D014463:Ultrasonography