Figure 3

Postoperative radiographs of patient 1. At 6 weeks postoperation, the lateral radiograph of the right forearm (A) showed a well grafted union. At 4 years of follow-up (B), the lesion had recurred to an enlarged extent with bowing deformity in both the ulna and radius, and the lesion and deformity continued to be progressive over time (C) at 8 years postoperation.