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. 2017 Apr 6;90(1073):20160130. doi: 10.1259/bjr.20160130

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© 2017 The Authors. Published by the British Institute of Radiology

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Figure 6. — Anteroposterior (AP) and lateral radiographs of the knee (a, b) demonstrating patchy areas of sclerosis and lucency in the distal femur and proximal tibia representing changes of osteonecrosis (arrows). Mild joint space narrowing related to secondary osteoarthritis is also present. AP radiographs of the right hip (c) demonstrating osteonecrosis (arrow). The patchy regions of sclerosis involving the femoral head can be noted. The AP radiograph of the chest (d) reveals patchy sclerosis of humeral heads consistent with avascular necrosis (arrows).