After en Bloc Resection

he unicameral bone cyst is a relatively common lesion that usually is found at the time of a bone fracture dur-ing the first decade of life. These lesions exhibit a pro-clivity for the proximal part of the humerus, followed by the proximal part of the femur1. The natural history of the unicameral bone cyst is highly variable, and this complicates efforts to evaluate various treat-ment modalities. In addition, the unicameral bone cyst pur-T Fig. 1 Initial radiograph showing a small osteolytic lesion of the prox-imal part of the fibula with periosteal new bone and a linear defect suggesting a healing fracture. Fig. 2 Anteroposterior radiograph of the proximal part of the leg, made imme-diately after surgery, demonstrating complete excision of the lesion