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Updated: Jun 4, 2025

Cell Population Analyses During Skin Carcinogenesis
Published on: August 21, 2013
A Case of Squamous Cell Carcinoma of the Breast Occurring in Benign Phyllodes Tumor
Kumiko Hayashi1, Goshi Oda1, Tsuyoshi Nakagawa2
1Department of Breast Surgery, Institute of Science Tokyo Hospital, Tokyo, JPN.
Abstract:
A 49-year-old woman visited our hospital after noticing an enlarged left breast mass. After a biopsy, she was diagnosed with fibroadenoma and underwent tumor resection. Postoperative pathology revealed squamous cell carcinoma (SCC) within a benign phyllodes tumor. Following additional resection, adjuvant chemotherapy was administered in accordance with the treatment for triple-negative breast cancer, and the patient has since progressed without recurrence for four years. The occurrence of SCC within a phyllodes tumor is extremely rare, and we report this case through a review of the literature.
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