Fig. 1

Case of a 70-year-old female patient with a pathological proximal femur fracture due to a metastatic lesion of a cholangiocellular carcinoma (CCC, UICC Stadium IV). A Conventional radiography showing pathological fracture of the left femur. B Computed tomography (CT) shows a lytic lesion of the proximal femur. C PET-CT scan with a large malignant tumor of the liver that histologically revealed to be a CCC. D Postoperative antero-posterior radiograph after resection and replacement of the proximal femur