title: Primary solitary intracranial melanoma in the sylvian fissure: MR demonstration.
abstract: We present a rare case of a primary intracranial melanoma originating from leptomeningeal melanoblasts in the sylvian fissure. The mass appeared hyperintense on T1-weighted MR images and hypointense on T2-weighted MR images, reflecting the presence of abundant melanin granules in the tumor. Associated leptomeningeal enhancement suggested a dire prognosis.
authors.affiliation: Department of Radiology, Kansai Rosai Hospital 3-1-69, Inabaso, Amagasaki-city, Hyogo 660-8511, Japan. kashiwagi@kanrou.net
authors.forename: Nobuo
authors.initials: N
authors.lastname: Kashiwagi
authors.forename: Norio
authors.initials: N
authors.lastname: Hirabuki
authors.forename: Hideo
authors.initials: H
authors.lastname: Morino
authors.forename: Takuyu
authors.initials: T
authors.lastname: Taki
authors.forename: Wakako
authors.initials: W
authors.lastname: Yoshida
authors.forename: Hironobu
authors.initials: H
authors.lastname: Nakamura
mesh_terms: D001932:Brain Neoplasms / Q000175:diagnosis* / Q000473:pathology; D002540:Cerebral Cortex / Q000000981:diagnostic imaging; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008545:Melanoma / Q000175:diagnosis* / Q000473:pathology; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed