Anatomy, physiology, and development of the male breast

The normal anatomy and individual features of the breast and regional lymph nodes in men should be considered during the examination. Each breast is located on the anterior surface of the chest, on the pectoral fascia and pectoralis major muscle between the parasternal and anterior axillary lines, with the nipple on the midclavicular line (Fig. 2.1). The breast level typically corresponds to the second through sixth ribs. © Springer International Publishing Switzerland 2015.