title: Ultrasonography and brain pathology of periventricular hemorrhage and subependymal cyst in the preterm neonate.
abstract: Ultrasound (US) findings in 32 premature infants with intraventricular hemorrhages (IVH, 21 cases), subependymal hemorrhages (SEH, 5 cases) or subependymal cysts (SEC, 6 cases) were reviewed to determine the accuracy of US diagnosis and clarify the pathogenesis of SEC. With single US there was the possibility of false-positive or -negative SEH or IVH, but serial US showed diagnostic accuracy for SEH or IVH. Four of 6 cases with iron-negative SEC did not show an image of prior SEH and the SEC suggested focal ischemic microcirculation which may be important in the pathogenesis of the occurrence of SEH or the development from SEH to IVH.
mesh_terms: D001921:Brain / Q000473:pathology; D001927:Brain Diseases / Q000175:diagnosis*; D002543:Cerebral Hemorrhage / Q000175:diagnosis / Q000473:pathology; D002552:Cerebral Ventricles; D003560:Cysts / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000175:diagnosis*; D014463:Ultrasonography