Juxtacortical osteoma of the ulna.
Acase of juxtacortical osteoma of the ulna in a 47-year-old woman is presented. She had a dense bony mass on the ulna. Radiological examinations (plain radiography, computed tomography, magnetic resonance imaging) strongly suggested a rare case of juxtacortical osteoma of a long tubular bone. The differential diagnosis included parosteal osteosarcoma, melorheostosis, osteochondroma, end-stage juxtacortical myositis ossificans, and fibrous dysplasia protuberans. The tumor was excised totally for thorough pathological examination, which revealed it to be composed of lamellar bone, suggesting that the origin was periosteal.
Chikuda
Hirotaka
H
Department of Orthopaedic Surgery, Faculty of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
Goto
Takahiro
T
Ishida
Tsuyoshi
T
Iijima
Takuo
T
Nakamura
Kozo
K
D001707:Biopsy, Needle; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010016:Osteoma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D018217:Osteosarcoma, Juxtacortical / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D018570:Risk Assessment; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014457:Ulna