“…Recently (April, i960), follow up examination of the same case showed congestion of the neck veins denoting invasion of the jugular vein by the tumour. Angio-invasiveness has been previously reported in nine cases with intracranial extension in six of them (Shreekumar and Rosenbluth, 1959). The vessels invaded were the jugular vein, the sigmoid sinus, the transverse sinus, the petrosal sinus and the cavernous sinus.…”