title: MR imaging of a case of a dumbbell-shaped spinal schwannoma with intramedullary and intradural-extramedullary components.
abstract: We present here a case of intramedullary- and extramedullary-intradural, dumbbell-shaped schwannoma that developed in the upper thoracic cord in a middle-aged man. Before surgery, the tumor was clearly revealed as a mass with two components, intramedullary and extramedullary, on MRI, and it could be useful for operation. We discuss the possible pathogenesis of this tumor.
authors.affiliation: Department of Radiology, Izumi Municipal Hospital, Isumi-shi, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kono
authors.forename: Y
authors.initials: Y
authors.lastname: Inoue
authors.forename: H
authors.initials: H
authors.lastname: Nakamura
authors.forename: M
authors.initials: M
authors.lastname: Shakudo
authors.forename: K
authors.initials: K
authors.lastname: Nakayama
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009442:Neurilemmoma / Q000473:pathology*; D013120:Spinal Cord Neoplasms / Q000473:pathology*; D013904:Thoracic Vertebrae / Q000473:pathology