“…It is to be expected, therefore, that tumours may arise from any of these tissues. Fibrosarcoma, leiomyosarcoma, liposarcoma (Williams and Savage, 1958), malignant hlemangiopericytomas (Farrow et al, 1968) and malignant neurilemmoma (Fein and Hamm, 1965) have all been recorded. Renal sarcomas have been reviewed by Mintz (1937), Weisel, Dockerty and Priestly (1943), Culp and Hartmann (1948) and Farrow et al (1968).…”