Case report of a breast mass with three types of malignant tumors—squamous cell carcinoma, invasive ductal carcinoma, and breast sarcoma

Abstract

Breast malignancy comprises malignant tumors originating from epithelial tissue and breast sarcoma arising from mesodermal tissues. Despite heterogeneity in tumors, most malignant tumors of the breast are composed of a single type of tumor. Here, we report a patient with breast tumor consisting of three different types of malignancies—squamous cell carcinoma, invasive ductal carcinoma, and high-grade breast sarcoma.