a Single Breast Tumor

License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Introduction. Primary breast sarcomas (PBSs) are rare nonepithelial breast tumors compromised ofmesenchymal mammary tissue. Although its rare nature has made the best mode of PBS treatment difficult to determine, it seems better to treat it more like a sarcoma creating clear negative margins verses breast carcinoma utilizing lumpectomy, partial mastectomy, and total mastectomy. Case. A 47-year-old obese Caucasian postmenopausal female G2P2 presents with a breast lump demonstrating a histological sample with a biphasic pattern consistent with both ductal carcinoma containing typical malignant epithelial cells and sarcomatou