男性乳腺恶性肿瘤罕见。我院1981年至1995年共收治15例男件乳腺癌和2例乳腺肉瘤。首发症状多为乳晕下肿块，易侵犯皮肤、胸肌、内乳淋巴结，出现胶淋巴结转移常较女性乳腺癌为早；乳腺肉瘤则多呈局限性生长，肿块一般偏大，多血性转移。本组浸润性导管瘤及单纯癌占2／3，无小叶原位癌。2例乳腺肉瘤为间质肉瘤、平滑肌肉瘤（平滑肌瘤恶变）。治疗上与女性患者一样，笔者建议在男子中也开展“乳腺自我检查”，以发现早期癌，从而提高男性乳腺恶性肿瘤的治愈率。 Malignant breast tumors are rare. In our hospital from 1981 to 1995, 15 cases of male breast cancer and 2 cases of breast sarcoma were treated. The first symptoms are mostly masses under the areola, which easily invade the skin, breast muscles, and internal breast lymph nodes. The occurrence of axillary lymph node metastasis is often earlier than that of female breast cancer. The breast sarcoma is usually limited growth, and the masses are generally larger and more bloody. This group of invasive ductal tumors and simple cancer accounted for 2/3, no lobe carcinoma in situ. Two cases of breast sarcoma were mesenchymal sarcoma and leiomyosarcoma (malignant leiomyoma). The same treatment as the female patient, the author suggests that in men also carry out “breast self-examination” to detect early cancer, thereby increasing the cure rate of male breast cancer.