Distal recurrence of periosteal osteosarcoma after complete excision of proximal primary tumour with good excision margins.

We present this case of an unusual recurrence of a periosteal osteosarcoma in the distal right tibia 2 years after a successful proximal right tibia primary periosteal osteosarcoma excision with a successful fibular graft. This recurrence lead to a right below-knee amputation.