[Breast neoplasm in men and women--prognosis comparison].

Unlabelled: Male breast cancer is a rare disease, therefore our knowledge of the disease is limited.

Aim: Comparison of prognosis of male breast cancer and not-otherwise specified (NOS) invasive ductal female breast cancer and invasive lobular female breast cancer.

Material And Methods: From 1.01.1997 to 31.03.2000 in Clinical Department of Surgical Oncology, Medical University of Łódź, 3862 patients were operated on breast cancer. There were 24 males (0.6%) and 3838 females (99.4%). Full clinical and pathological data concerning 22 males were collected; these males composed a studied group. Females with invasive lobular breast cancer (65 women) and with invasive ductal NOS breast cancer (474 women) operated on in our Department from 1977 to 1982 composed comparison groups. P-value of = 0.05 was considered as statistically significant.

Results: Comparison of survival between males with breast cancer and females with invasive ductal NOS breast cancer: Gehan-Wilcoxon test P = 0.914; Mantel-Cox test P = 0.825; log-rank test P = 0.865; Peto-Peto test P = 0.901. Comparison of survival between males with breast cancer and females with invasive lobular breast cancer: Gehan-Wilcoxon test P = 0.443; Mantel-Cox test P = 0.305; log-rank test P = 0.413; Peto-Peto test P = 0.421.

Conclusion: Prognosis of male breast cancer is not statistically different from that of female invasive ductal NOS and invasive lobular breast cancer.