Fig. 1From: Evaluation of volumetric breast density as a risk factor for breast carcinoma in pre- and postmenopausal women, its association with hormone receptor status and breast carcinoma subtypes defined by histology and tumor markersMedio-lateral oblique views of mammograms showing different Volpara density grades with quantitative volumetric density values: A, E Grade a (3.0%), B, F Grade b (4.3%), C, G Grade c (8.6%) and D, H Grade d (24.5%)Back to article page