title: Correlation between MR image characteristics and histological features of acoustic schwannoma.
abstract: We retrospectively studied 21 cases of histologically proven acoustic shwannomas with an emphasis on the correlation of their magnetic resonance imaging (MRI) findings and histological features. All cases were of low signal intensity in the T1W MRI. In the T2W MRI, 9 of them were of homogeneous high signal intensity (Hom-HSI-T2) and 12 of them were of heterogeneous high signal intensity (Het-HSI-T2). The cases of Hom-HSI-T2 were generally associated with capsular enhancement, and were usually cystic tumors with high vascularities and mainly Antoni A tissues. On the contrary, the cases of Het-HSI-T2 were generally associated with homogeneous enhancement, and were usually solid tumors with low vascularities and various tissue components.
authors.affiliation: Department of Neurosurgery, Tokyo Women's Medical College.
authors.forename: M
authors.initials: M
authors.lastname: Hayashi
authors.forename: O
authors.initials: O
authors.lastname: Kubo
authors.forename: H
authors.initials: H
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Taira
authors.forename: Y
authors.initials: Y
authors.lastname: Tajika
authors.forename: M
authors.initials: M
authors.lastname: Izawa
authors.forename: K
authors.initials: K
authors.lastname: Takakura
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009464:Neuroma, Acoustic / Q000175:diagnosis* / Q000473:pathology* / Q000601:surgery; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives; D016634:Radiosurgery; D012189:Retrospective Studies
chemical_list: D009942:Organometallic Compounds; D004369:Pentetic Acid; D019786:Gadolinium DTPA