Metaplastic breast carcinoma with multiple muscle metastasis: a case report.

Metaplastic breast carcinoma (MBC) is a rare type of breast carcinoma. Recurrence presenting as chest wall invasion is common but rarely as metastasis to distal skeletal muscle in which most patients present with a painful mass. Herein, we report a rare case of 65-year-old woman, with MBC and recurrence presenting as distal multiple muscle metastasis.