title: Giant cell reparative granuloma of the temporal bone: MR findings with pathologic correlation.
abstract: We report MR findings in a case of a giant cell reparative granuloma involving the temporal lobe in a middle-aged man. On MR images, most of the mass was hypointense on T1-weighted images, hypointense on T2-weighted images, and mildly enhanced on postcontrast T1-weighted images. The hypointensity on T2-weighted images corresponded to areas of hemorrhage and hemosiderin deposition on pathologic correlation.
authors.affiliation: Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1 Poongnap-dong, Songpa-gu, Seoul 138-736, South Korea.
authors.forename: Hyun Jeong
authors.initials: HJ
authors.lastname: Kim
authors.forename: Ho Kyu
authors.initials: HK
authors.lastname: Lee
authors.forename: Dae Chul
authors.initials: DC
authors.lastname: Suh
authors.forename: Choong Gon
authors.initials: CG
authors.lastname: Choi
authors.forename: Jae Kyun
authors.initials: JK
authors.lastname: Kim
authors.forename: Jeong Hyun
authors.initials: JH
authors.lastname: Lee
authors.forename: Kyung Ja
authors.initials: KJ
authors.lastname: Cho
mesh_terms: D003287:Contrast Media; D004424:Ear Canal / Q000473:pathology; D019786:Gadolinium DTPA; D006101:Granuloma, Giant Cell / Q000175:diagnosis* / Q000473:pathology; D006470:Hemorrhage / Q000175:diagnosis / Q000473:pathology; D006485:Hemosiderin / Q000378:metabolism; D006801:Humans; D007089:Image Enhancement; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008297:Male; D008416:Mastoid / Q000473:pathology; D008875:Middle Aged; D013701:Temporal Bone / Q000473:pathology*
chemical_list: D003287:Contrast Media; D006485:Hemosiderin; D019786:Gadolinium DTPA