Male breast cancer accounts for 1% of all breast cancer cases.
There are over 400 deaths from male breast cancer each year and the mortality rate is slightly higher than that of female breast cancer.
2,700 New Cases
The American Cancer Society estimates that there are over 2,200 new cases reported each year.
A lump near the nipple is the most common sign. The average size of the lump is 2.5 cm in diameter.
Infiltrating Ductal Carcinoma is the most common form of breast cancer. This means that the cancer originated in the ducts or tubular structures and that the cells have spread beyond the ducts into the surrounding tissue.
Other symptoms can include skin ulceration, puckering or dimpling, redness or scaling, or retraction (turning inward) of the nipple.
Bloody or opaque discharge from the nipple may also occur.
Breast cancer can metastasize (spread) to other areas of the body including the bones, prostate, liver, and brain causing traumatic and deadly symptoms.
The risk factors for male breast cancer and female breast cancer are the same. Cancer in general is not fully understood, but both environmental and genetic (inherited) factors can be involved in cancer development.