A rare presentation of malignant phyllodes tumor with bloody nipple discharge-report of a case.

Phyllodes tumor of the breast is a rare neoplasm, particularly in young women. It is usually presented as a unilateral palpable mass and nipple discharge presented as a symptom is rare. We reported a 22-year-old Taiwanese woman in our hospital for right breast tumor with nipple discharge. Preoperative diagnosis was intraductal papilloma but the histological examination showed a malignant phyllodes tumor with intraductal growth. Symptom of nipple discharge and intraductal growth in phyllodes tumor are rare presentations. Therefore, the management and the biological behavior of this uncommon tumor are discussed in this patient.