Fig. 1
From: Epiphyseal osteosarcoma with serial changes of pretreatment imaging findings: a case report
Longitudinal changes in X-ray findings. a, b Anteroposterior (AP) and lateral X-rays obtained during the initial visit, showing a sclerotic mass at the femoral epiphysis. c, d AP and lateral X-rays from the second visit, revealing an almost circular radiolucent shadow lesion with unclear margins and extensive contact with the articular surface on the lateral condyle of the femur, with an internal sclerotic lesion. e, f AP and lateral X-rays obtained after preoperative chemotherapy