Male breast cancer.

S.U., a 71-year-old man who lives alone, presented to the emergency department complaining of chest pain. He received a complete cardiac workup, and his chest pain was attributed to heartburn and indigestion. When the nurse practitioner examined him, she discovered a large ulcerated left breast mass (see Figure 1) with no palpable axillary lymphadenopathy. S.U. admitted that he’d known about the mass for a few years and that it had ulcerated a few months ago. He did not tell anyone about it because he was embarrassed to be “growing” a breast. A core biopsy of the breast mass revealed that the patient had infiltrating ductal carcinoma. He underwent a sentinel lymph node biopsy, which showed two positive sentinel lymph nodes. He subsequently underwent a modified radical mastectomy, and the tumor was found to be estrogen-receptor (ER) and progesterone-receptor (PR) positive.