[ Monash University ]

Museum of Pathology

CARCINOMA OF MALE BREAST

CARCINOMA OF MALE BREAST

Clinical History

A man of 84 developed a painful nipple associated with underlying swelling and intermittent bloodstained discharge. Examination showed an irregular left nipple which was enlarged and had a cracked surface. Deep to the nipple was a palpable mass which was not attached to deeper structures. Radical mastectomy was performed with satisfactory post-operative recovery.

Pathology

The specimen is a portion of male breast sliced through the nipple and mounted to display external and cut surfaces. The nipple has an irregular surface and is slightly retracted. On the cut surface is a pale tumour, 2 cm in diameter, which is attached to the overlying skin and is invading the subjacent fat. Although not encapsulated, the tumour is moderately well demarcated from the surrounding adipose tissue and has a lobulated cut surface. This is a carcinoma of a male breast.