Scientific article
Solitary Osteochondroma of the Trapezium: Case Report

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Osteochondroma of the carpal is rare. We found only 1 case of osteochondroma of the trapezium in the literature. We present a case of a 52-year-old woman with an osteochondroma of the left trapezium and trapeziometacarpal arthritis.

Section snippets

Case Report

In December 2008, a 52-year-old, right hand–dominant woman was referred to our hospital reporting pain and tenderness in the left trapeziometacarpal joint. She initially noticed discomfort with no major trauma in 2006. The symptom had increased over time, changing to pain and subsequent difficulty of grasp motion. During physical examinations, we noted slight swelling, motion pain, and tenderness around the left trapeziometacarpal joint. The active range of motion of the left thumb

Discussion

Osteochondroma of the carpal is extremely rare. Our literature search revealed 21 cases of osteochondroma occurring in carpals, including 15 cases of scaphoid,4, 5, 6, 8 3 of capitates,9, 11 and 1 each of lunate,12 hamate,13 and trapezium.14 Most osteochondromas develop in the scaphoid. Only 1 case of osteochondroma originating from the trapezium has been reported. The mean age of patients with carpal osteochondromas in previous reports was 50 years (range, 14–84 y). Complications have been

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    Only sporadic cases have been reported for solitary osteochondromas arising from carpal bones. Lesions involving the scaphoid, the capitate, the lunate, the hamate and the trapezoid have been reported.1–9 Although osteochondromas are benign tumors of children, in almost all cases in the literature, osteochondromas of the carpal bones are discovered in adult age.

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