“…Both vasoconstrictors and vasodilators have been used in an effort to disclose the abnormal vascularity [21,48]. Hypervascular lesions which may be demonstrated by arteriography include aneurysm5 [9,17], arteriovenous malformations, angiomas [36] hemangioendotheliomas [34], liver cell adenomas [2], focal nodular hyperplasia [lo], hepatomas 1411 and vascular metastases [15]. The most common vascular metastases include carcinoma of the kidney, cystadenocarcinoma of the pancreas and ovary, adrenal carcinoma, thyroid carcinoma, carcinoid, islet cell carcinoma, choriocarcinoma and leiomyosarcoma.…”