Significance of vascularity of the breast: a quantitative approach using xeromammography.

Vascularity of the breast was assessed from Xeromammograms by calculating the venous diameter ratio (ratio of the diameter of the largest vein in either breast to the diameter of a comparable vein in the opposite breast) for 60 patients (32 carcinomas and 28 benign conditions). Vein diameter was easier to measure on Xeromammograms than on conventional mammograms. If the venous diameter ratio was 1.4:1, or greater, the possibility of malignancy was increased.