Malignant melanoma characteristically disseminates widely but infrequently metastasizes to the breast; primary melanoma of the breast is even rarer. Two cases of metastatic melanoma presenting as solitary breast tumors are reported, and unusual primary and metastatic sites in melanoma are discussed. A review of all metastatic tumors to the breast is presented. Conservative excision is recommended since mastectomy has not altered survival.
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Peter Pressman (1973) studied this question.