Chondrosarcoma of the proximal humerus secondary to ollier disease: an 8-year follow-up of successful resection of the tumor with endoprosthetic replacement of the proximal humerus.

Chondrosarcoma of the proximal humerus secondary to ollier disease: an 8-year follow-up of successful resection of the tumor with endoprosthetic replacement of the proximal humerus.