Unusual manifestation of an osteoid osteoma of the capitate.
A case of osteoid osteoma of the capitate in a 29-year-old male is reported. The patient suffered from unspecific clinical findings and a 3-year history of uncharacteristic wrist pain. Conventional radiographs of the wrist revealed a circumscribed sclerosis in the proximal part of the capitate bone beside a diffuse demineralisation of the carpal bones. Magnetic resonance imaging demonstrated a circumscribed, tumorous lesion with marked enhancement after IV administration of contrast agent and a highly calcified nidus, which was sharply demarcated by a small rim of granulation tissue from the surrounding spongious bone. Based on MRI findings, the diagnosis of an osteoid osteoma was established and confirmed after operation and histologic analysis.
Department of Radiology, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, D-55131 Mainz, Germany.
K F
KF
Kreitner
R
R
Löw
A
A
Mayer
D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis*; D002348:Carpal Bones / Q000473:pathology*; D003287:Contrast Media; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010017:Osteoma, Osteoid / Q000175:diagnosis*
D003287:Contrast Media; D019786:Gadolinium DTPA