Digital Atlas of Breast Pathology by Meenakshi Singh, MD - Department of Pathology, Stony Brook University Medical Center

Phyllodes tumor with benign epithelial component and a chondrosarcoma component.
Phyllodes tumor with a benign epithelial component (lower right corner) and a chondrosarcoma component (upper left corner). Rarely, the stroma of malignant phyllodes tumors can contain heterologous sarcomatous elements such as chondrosarcoma, angiosarcoma, liposarcoma, or myosarcoma.

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