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BREAST CARCINOMA METASTATIC TO UTERINE LEIOMYOMA

Two cases of breast carcinoma metastatic to uterine leiomyoma are presented. A review of literature disclosed fourteen cases of extrapelvic carcinoma with a metastasis to uterine leiomyoma, ten of which were of breast carcinoma. The high incidence of breast carcinoma among such tumors (75%) suggests some intimacy between these two tumors. It is speculated that the common property of their development by estrogenic stimulation may be responsible for the establishment of such an assodation.