case_images: PMC1698141_01
case_images: Pathological fracture of right proximal tibia.
case_images: SRCM2006-53901.001.jpg
case_images: PMC1698141_01_SRCM2006-53901.001.jpg
case_images: F1
case_images: A plain x-ray showed a pathological fracture of the proximal tibia (Figure 1) and he was referred to the regional sarcoma centre via his local fracture clinic.
case_images: MRI right leg, showing osteosarcoma of proximal tibia
  with further lesions in the distal femur.
case_images: SRCM2006-53901.002.jpg
case_images: PMC1698141_01_SRCM2006-53901.002.jpg
case_images: F2
case_images: Biopsy of proximal femoral lesion showing high-grade
  intramedullary osteosarcoma.
case_images: SRCM2006-53901.003.jpg
case_images: PMC1698141_01_SRCM2006-53901.003.jpg
case_images: F3
case_images: A biopsy of the proximal tibial lesion confirmed the diagnosis of high-grade intramedullary osteosarcoma (Figure 3).
case_images: Postoperative x-rays showing prosthetic replacement.
case_images: SRCM2006-53901.004.jpg
case_images: PMC1698141_01_SRCM2006-53901.004.jpg
case_images: F4
case_images: Therefore, six months after diagnosis, the patient underwent resection of the right proximal tibia and distal femur with prosthetic replacement (Figure 4).