title: Congenital cerebellar mixed germ cell tumor presenting with hemorrhage in a newborn.
abstract: We report here on a neonate with congenital cerebellar mixed germ cell tumor, and this initially presented as cerebellar hemorrhage. Postnatal cranial ultrasonography revealed an echogenic cerebellar mass that exhibited the signal characteristics of hemorrhage rather than tumor on MR images. The short-term follow-up images also suggested a resolving cerebellar hemorrhage. One month later, the neonate developed vomiting. A second set of MR images demonstrated an enlarged mass that exhibited changed signal intensity at the same site, which suggested a neoplasm. Histological examination after the surgical resection revealed a mixed germ cell tumor.
authors.affiliation: Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Sung Mok
authors.initials: SM
authors.lastname: Kim
authors.forename: Ji Hye
authors.initials: JH
authors.lastname: Kim
authors.forename: So-Young
authors.initials: SY
authors.lastname: Yoo
authors.forename: Won Soon
authors.initials: WS
authors.lastname: Park
authors.forename: Yun-Sil
authors.initials: YS
authors.lastname: Jang
authors.forename: Hyung-Jin
authors.initials: HJ
authors.lastname: Shin
authors.forename: Yeon-Lim
authors.initials: YL
authors.lastname: Suh
mesh_terms: D002526:Cerebellar Diseases / Q000209:etiology*; D002528:Cerebellar Neoplasms / Q000151:congenital* / Q000175:diagnosis / Q000000981:diagnostic imaging; D002543:Cerebral Hemorrhage / Q000209:etiology*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging; D009373:Neoplasms, Germ Cell and Embryonal / Q000151:congenital* / Q000175:diagnosis / Q000000981:diagnostic imaging; D014463:Ultrasonography