Malignant Progression in Two Children with Multiple Osteochondromas
Figure 5
(a) CT scan includes both distal femurs prior to excision of osteochondromas. Contrast the benign appearance of the osteochondroma on the patient’s right femur to the thickened cartilage cap with stippling on the left (arrow). (b) MRI includes the left distal femur after resection of the benign posteromedial osteochondroma and biopsy of the posterior chondrosarcoma, with the thickened cartilage cap and invasion of femoral cortex (arrow) evident.
