Figure 1

Plain radiographic images and computed tomograhic scan. (A) Anteroposterior (left) and lateral (right) radiographs show the proximal tibial epiphyseal osteolytic lesion with marginal sclerosis and a matrix with a ground glass appearance and without periosteal reaction. (B) Coronal (left) and sagittal (right) computed tomographic scans show the absence of cartilage matrix and dense marginal sclerosis without cortical disruption.