A Case of Giant Malignant Phyllodes Tumor of the Breast that Showed Rapid Progression within a Short Time

Abstract

A case of malignant phyllodes tumor with multiple lung metastases is reported. The patient was a 39-year-old woman with a tumor that occupied the whole right breast and was ulcerated, with exudate, blood, and a foul odor. She was admitted immediately because of severe anemia and pain. Simple mastectomy and skin flap reconstruction were performed to control hemorrhage and pain. Tumor weight was 4 kg, and its maximum diameter was 36 cm. Pathological examination showed a malignant phyllodes tumor, with a Ki67 labeling index of 70%. About 2 months after the operation, local recurrence in the skin of the right breast was observed, and the lung metastasis increased rapidly in size. The patient died about 3 months after the operation.