Malignant Progression in Two Children with Multiple Osteochondromas
Figure 4
(a) Anteroposterior radiograph reveals the large osteochondroma of the left distal femur in a 13-year-old with MO. (b) Lateral view further depicts the size of the large osteochondroma of the left distal femur. (c) Six-month follow-up anteroposterior radiograph, illustrating the obvious growth of the posterolateral lesion of the distal femur compared to the posteromedial osteochondroma, including erosion into the posteromedial osteochondroma by the tumor (arrow). (d) Six-month follow-up lateral radiograph reveals irregular calcifications within the cartilage cap, cortical erosions, and indistinct osseous margins, all suggesting malignant progression of the posterolateral osteochondroma of the distal femur.
