Phyllodes tumor of the breast with nipple discharge
Phyllodes tumors (PTs) of the breast are rare biphasic fibroepithelial neoplasms which usually present with unilateral palpable breast lumps. Published in the journal Medicine, the authors report a case of borderline PTs with multifocal intraductal lesions whose primary clinical manifestation was nipple discharge.

A 26-year-old young woman reported complaining of spontaneous nipple discharge in her left breast for one month. Her past history showed that she had accepted a lumpectomy on her left breast because of a palpable breast mass.

The postoperative pathological report revealed a complex fibroadenoma, with stromal cells proliferation, local lobulated structures were observed. She denied any family history of breast cancer or ovarian cancer.

On physical examination, a firm mass with a clear margin was palpated in lower inner quadrant near the nipple of the left breast, which measured approximately 2.5 cm in diameter. Single duct non-bloody discharge from the left nipple was evident after squeeze. There was no nipple retraction and skin dimpling evident.

Ultrasonography detected mammary duct ectasia and a solid-cystic mass measured 28 × 20 × 20 mm near nipple-areola complex (NAC) of the left breast. The histologic diagnosis was a borderline PT.

Clinical Pearls:-
- The lesions of the PTs are often manifested with unilateral, palpable masses in the breast.

- This is the first report of a borderline PT with primary manifestation of spontaneous nipple discharge.

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