Osteoid Osteoma of the Ulnar Head―An Uncommon Cause of Ulnar Wrist Pain

摘要

>Background Osteoid osteoma of the wrist is rare and treatment is still in debate. >Case Description We report on a patient with osteoid osteoma of the head of the ulna, as an unusual cause of pain on the ulnar side of the wrist. The diagnostic delay was 4 years. A previous ulna shortening surgery was performed because of misdiagnosis. The diagnosis was made with bone scan and computed tomography (CT). A surgical resection was performed. The symptoms disappeared, and full range of motion was recovered. >Literature Review Osteoid osteoma on the head of the ulna had never been described before. >Clinical Relevance This case demonstrates that osteoid osteoma can mimic ulnocarpal impingement syndrome.