Source:http://linkedlifedata.com/resource/umls/id/C0238033
MEDLINEPLUS: <p>Male breast cancer is rare. It happens most often to men between the ages of 60 and 70. Risk factors for male breast cancer include exposure to radiation, a family history of breast cancer and having high estrogen levels, which can occur with diseases like cirrhosis or <a href='http://www.nlm.nih.gov/medlineplus/klinefelterssyndrome.html'>Klinefelter's syndrome</a>.</p><p>Symptoms of male breast cancer include lumps, changes to the nipple or breast skin, or discharge of fluid from the nipple. Treatment for male breast cancer is usually a <a href='http://www.nlm.nih.gov/medlineplus/mastectomy.html'>mastectomy</a>, which is surgery to remove the breast. Other treatments include radiation, chemotherapy and/or hormone therapy. </p><p style="font-weight:bold;font-style:italic;">NIH: National Cancer Institute</p>,NCI: Cancer that forms in tissues of the breast in men. Most male breast cancer begins in cells lining the ducts. It is very rare and usually affects older men.,NCI: A rare malignant tumor