Author Credentials

Micah Ray, MD Mary Legenza, MD Diane Krutzler, MD

Author ORCID Identifier



Synchronous Breast Cancer, Phyllodes Tumor, Triple Negative Breast Cancer


Medicine and Health Sciences


Synchronous breast cancer is a rare event. The majority of cases of synchronous breast cancer will have minor differences in receptor status, but rarely different origins of the tumors. Various breast tumors can have either epithelial or mesenchymal origin and have different treatment strategies and outcomes. In the literature there is a paucity of information regarding the synchronous presentation and treatment of a triple negative invasive ductal carcinoma (TN IDC) and a malignant phyllodes tumor (mPT). This case presentation discusses a 64-year-old woman who presented with a left breast TN IDC and a right breast malignant phyllodes tumor.