The authors report a retrospective clinicopathologic study of 8 cases of uterine metastases from breast cancer. This is the largest surgical series dealing with this subject to be published to date. Not autopsy case has been considered. Much information has come out of this analysis and out of the international literature review: secondary location in the uterus can occur many years after the diagnosis and treatment of primary cancer of the breast; infiltration of the endometrium appears as common as infiltration of the myometrium; the histological type is nearly always invasive lobular carcinoma. The later was found in seven out of eight cases; the evaluation of hormone receptor levels in the surgical specimens has shown that most breast cancers metastasizing to the uterus are hormone-dependent.