Unusual manifestation of an osteoid osteoma of the capitate |
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Authors: | K-F Kreitner R Löw A Mayer |
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Institution: | (1) Department of Radiology, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, D-55131 Mainz, Germany, DE;(2) Department of Traumatology and Hand Surgery, Johannes Gutenberg University, Langenbeckstrasse 1, D-55131 Mainz, Germany, DE |
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Abstract: | 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.
Received: 17 December 1997; Revision received: 30 September 1998; Accepted: 7 October 1998 |
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Keywords: | : Osteoid osteoma Carpal bones Capitate MRI |
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