<prompt> What diagnosis is suggested by the findings on this anteroposterior radiograph of the right tibia?Ewings sarcomaMarrow hyperplasiaOsteomalaciaPolyostotic fibrous dysplasia  <response>: Answer B. Marrow hyperplasiaThe radiograph of the right tibia and fibula show the characteristic coarsened trabecular pattern, cortical thinning, and a widened medullary cavity consistent with marrow hyperplasia. This patient was being treated for beta-thalassemia major. 