title: Germ cell tumors of the central nervous system originating from non-pineal regions: CT and MR features.
abstract: CT and MR findings were retrospectively reviewed in 12 patients with germ cell tumors originating from the non-pineal regions. Cystic or necrotic components were seen in 6 patients. Of 4 germinomas, 2 showed mixed density on the CT. The MR signal intensity of the tumor was non-specific. Of 8 germinomas, 4 were inhomogeneously enhanced on postcontrast CT and T1-weighted MR images. CT and MR features of germinomas originating from non-pineal regions frequently differ from those of germinomas originating from the pineal region. The mass of the tumor often appeared cystic and inhomogeneously enhanced following contrast infusion.
authors.affiliation: Department of Radiology, School of Medicine, Akita University, 1-1-1, Hondo, Akita 010-8543, Akita City, Japan. tomura@med.akita-u.ac.jp
authors.forename: N
authors.initials: N
authors.lastname: Tomura
authors.forename: S
authors.initials: S
authors.lastname: Takahashi
authors.forename: K
authors.initials: K
authors.lastname: Kato
authors.forename: K
authors.initials: K
authors.lastname: Okane
authors.forename: R
authors.initials: R
authors.lastname: Sashi
authors.forename: O
authors.initials: O
authors.lastname: Watanabe
authors.forename: J
authors.initials: J
authors.lastname: Watarai
authors.forename: Y
authors.initials: Y
authors.lastname: Ito
authors.forename: K
authors.initials: K
authors.lastname: Mizoi
mesh_terms: D000293:Adolescent; D000328:Adult; D016543:Central Nervous System Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D002648:Child; D003287:Contrast Media; D003937:Diagnosis, Differential; D005260:Female; D018237:Germinoma / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010870:Pineal Gland / Q000473:pathology*; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media