Fig. 1From: Imaging findings and classification of the common and uncommon male breast diseasesDifferences between female and male breast. a, b Oblique sagittal VRT image and MLO mammography image of normal female breast. Note the well-developed fibroglandular structures (blue arrows) and smaller pectoral muscles (red arrows). c, d Oblique sagittal VRT image and MLO mammography image of normal male breast. Note the rudimentary structure of male breast with involuted fibroglandular tissue, small nipple-areolar complex (green arrows), and prominent pectoral muscles (yellow arrows)Back to article page