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Hypertrophic Pisiform: A Case of Osteoid Osteoma
Keiko Hori1, Toshiyasu Nakamura2, Kazuki Sato1
1Department of Orthopaedic Surgery, School of Medicine, Keio University, Tokyo, Japan.
Journal of Wrist Surgery
|February 7, 2020
Abstract:
We treated an extremely rare case of osteoid osteoma of the pisiform. Pisiform hypertrophy caused persistent pain and ulnar nerve irritation at Guyon's canal after the initial trauma. The re-enlargement of the pisiform attracted our attention allowing us to ultimately diagnose the condition as osteoid osteoma and treat the patient with a successful clinical result.

