Benign phyllodes tumor with osseous metaplasia: A rare case report

Phyllodes tumors are rare fibroepithelial neoplasms of the breast, classified as benign, borderline, or malignant based on histological features. Osseous metaplasia, characterized by presence bone formation within tumor, is an uncommon finding. This case report highlights rarity osseous metaplasia in a benign phyllodes tumor. A 23-year-old female presented with gradually enlarging lump left breast. Mammography and cytological diagnosis were suggestive giant fibroadenoma. Surgical excision was done histopathological tumor made. The occurrence exceptionally rare. Differentiating this phenomenon essential for accurate appropriate management. Further research needed to understand underlying mechanisms clinical implications tumors.