Fig. 4

Chronologically arranged radiograms of kidney cancer metastases to the proximal femur (a) after resection of bone tumor and modular prosthesis implantation (b). Next, the radiogram (c) shows the postoperative recurrence of the disease. A coronal view from an MRI (d) shows a large tumor involving the whole thigh. There is visible damage to the femur and a loose prosthesis