Fibrocartilaginous dysplasia of bone

Fibrocartilaginous dysplasia is a benign, unusual complication of fibrous dysplasia occurring in the lower extremities, especially the femoral neck. Rapid growth and chondroid features may cause fibrocartilaginous dysplasia to be misdiagnosed as malignant. True chondrosarcomatous transformation of fibrous dysplasia is probably very rare. A recent case of fibrocartilaginous dysplasia is presented.