英和和英

cancer that forms in tissues of the breast, usually the ducts (tubes that carry milk to the nipple) and lobules (glands that make milk). it occurs in both men and women, although male breast cancer is rare.

乳房の組織、通常は乳管（母乳を乳頭に送る管）および小葉（母乳を作る腺）に発生するがん。乳がんは男性と女性の両者に起こるが、男性の乳がんはまれである。