title: A case report of synchronous osteoblastoma and fibromatosis.
abstract: Osteoblastoma is a rare bone tumour that accounts for 1% of all primary bone tumours and 3% of all benign bone tumours. Osteoblastoma occurring in long bones has a predilection for the meta-diaphysis. It bears a close histological resemblance to osteoid osteoma, but it is not growth limited - usually 2 cm or greater at diagnosis. The term "fibromatosis" covers a broad spectrum of benign fibrous tissue proliferations. It is characterized by infiltrative growth and a tendency for recurrence; however, unlike sarcoma, it never metastasizes. To our knowledge, this is the first case report in the English literature of a patient with synchronous presentation of an osteoblastoma and fibromatosis.
authors.affiliation: Department of Radiology, Vancouver General Hospital, University of British Columbia, Canada.
authors.forename: H M
authors.initials: HM
authors.lastname: O'Dwyer
authors.forename: C F
authors.initials: CF
authors.lastname: Keogh
authors.forename: J X
authors.initials: JX
authors.lastname: O'Connell
authors.forename: P L
authors.initials: PL
authors.lastname: Munk
mesh_terms: D000328:Adult; D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D005266:Femoral Neoplasms / Q000175:diagnosis / Q000473:pathology*; D005350:Fibroma / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis / Q000473:pathology*; D018215:Osteoblastoma / Q000175:diagnosis / Q000473:pathology*; D012983:Soft Tissue Neoplasms / Q000175:diagnosis / Q000473:pathology*; D013848:Thigh; D014057:Tomography, X-Ray Computed