A male case of synchronous double cancers of the breast and prostate.

A male case of synchronous double cancers of the breast and prostate is reported. An 84-year-old male was admitted to the hospital complaining of general malaise, anorexia and weight loss. A tumor 3 cm in diameter was noted in his left breast, which was removed by mastectomy, and was diagnosed as papillotubular carcinoma. An induration of his prostate and elevated prostate specific antigen, gamma-seminoprotein and prostatic acid phosphatase levels were also noted. Needle biopsy of his prostate revealed adenocarcinoma. Among the previous 18 reported cases of this combination of cancers, those with no prior estrogen therapy were very rare, the present case being the third ever reported.