Fig. 2From: Evaluation of the association between quantitative mammographic density and breast cancer occurred in different quadrantsA woman with an invasive ductal carcinoma (arrows) in the UO quadrant of the right breast. Upper panel: original mammography. Lower panel: segmented breast area and density. Each view is divided into 2 partitions using a bisecting line through the nipple. In the left normal breast, the percent density is the highest in the UO quadrant (17.7%), followed by UI quadrant (15.2%), LO quadrant (14.2%), and LI quadrant (11.7%)Back to article page