Chondrosarcoma of the chest wall with Ollier's disease.

A 15 x 15 cm mass in the right hemithorax of a 25-year-old woman was incidentally detected at routine chest radiography. Radical excision of the bony chest wall, including right CII-VI, revealed chondrosarcoma. Large, expansile parosteal chondromas were radiographically visualized in the pelvis and bones of the lower leg, representing Ollier's disease. Chondrosarcoma of the chest wall appears to be rare in Ollier's disease.