This Publication Is Searchable The Merck Manual of Diagnosis and Therapy Section 18. Gynecology And Obstetrics Chapter 242. Benign Breast Disorders Breast Cancer Paget's Disease Cystosarcoma Phyllodes Cystosarcoma Phyllodes Cystosarcoma phyllodes has many of the clinical characteristics of a fibroadenoma but generally should be treated as a sarcoma. The usual treatment is wide excision, but a mastectomy may be more appropriate if the mass is large in relation to the breast.
Prognosis is good unless metastasis is present.
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