Case report of a 30.8 pound cystosarcoma phyllodes of breast.

This is a case report and literature review of a 30.8 pound cystosarcoma phyllodes tumor resected in a 54-year-old female. Starting at age 19, the patient had noted a small breast tumor that continued to grow over the years. Pathology reported a low-grade malignant phyllodes tumor with no nodal involvement. Surgical resection with clear margins still remains the main treatment for this tumor. Radiation may be helpful in those with positive margins, a tumor greater than 4 cm, and those with reoccurrence.