Unusual articular abnormalities in scleroderma.

Articular involvement is described in a 58-year-old female patient with scleroderma. Radiological findings included intra-articular calcification, destructive osteoarthritis and selective involvement of the first metacarpal base. The discussion attempts to explain the way in which intra-articular calcification and osteolytic lesions may appear, citing various hypotheses put forward concerning such involvement in scleroderma.