The picture shows swollen thigh of a 14 year old boy who had osteosarcoma of upper end of femur. By the time he presented to us, the disease had already progressed and lesion grew quite big.

The picture also shows a constriction mark that resulted from previous bandage that has been put as a part of treatment by a local osteopath.

The swelling is visible circumferentially and dilated veins can be found over the surface, a feature that points to malignancy.