title: Fibroblastic type osteosarcoma of the ulna: a case report of a tumor in a rare location with atypical imaging findings.
abstract: The ulna is a rare site of origin for osteosarcoma, and purely osteolytic osteosarcomas are uncommonly noted on conventional radiographs. We present a patient with a lytic lesion of the distal ulna for which imaging findings suggested an aneurysmal bone cyst. The lesion was histologically confirmed to be a fibroblastic osteosarcoma.
authors.affiliation: Department of Radiology and Institute of Radiation Medicine, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Ijin
authors.initials: I
authors.lastname: Joo
authors.forename: Jung Ah
authors.initials: JA
authors.lastname: Choi
authors.forename: Jin Haeng
authors.initials: JH
authors.lastname: Chung
authors.forename: Joo Han
authors.initials: JH
authors.lastname: Oh
authors.forename: Sung Hwan
authors.initials: SH
authors.lastname: Hong
authors.forename: Heung Sik
authors.initials: HS
authors.lastname: Kang
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D012516:Osteosarcoma / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014457:Ulna