Value of angiography in hemangiopericytomas

Haemangiopericytoma is a rare type of tumour which mostly develops in the soft parts. The article reports on the manifestations of one tumour each in the thigh and pelvis. The angiogram shows displacement of the major arteries, the tumour-supplying vessels penetrate into the growth by means of one or several peduncles, and intensive coloration takes place during the parenchyma phase. However, the "typical angiographic image" was seen in one of the two cases only.