The Characteristic Angiographic Criteria of Malignancy

Angiograms of proved malignant neoplasms were evaluated to identify criteria of malignancy and to compare their incidence with nonmalignant controls. Three angiographers studied the material, which was then analyzed by a shared-time computer, and a strategy was developed for evaluating the data. This double-blind study revealed that perivascular cuffing (encasement) was the most reliable criterion; in its absence, neovascularity and associated arterial and venous occlusion and deformity were of equal importance. The absence of neovascularity strongly suggests benignancy.