Recurrence of Phyllodes Tumour Breast with Transformation into Metaplastic Carcinoma

Phyllodes tumours of the breast are rare fibroepithelial neoplasms, that can recur as metaplastic breast carcinoma. Metaplastic breast carcinoma is an uncommon invasive carcinoma that constitutes 0.2% to 1% of all breast cancers. We report a rare case of a 45-year-old female with a recurrent phyllodes tumor with transformation into metaplastic carcinoma, who presented with ahuge recurrent mass in the right breast that was treated with mastectomy. Histopathological and immunohistochemistry analysis confirmed it to be metaplastic carcinoma. Postoperatively she had adjuvant therapy and was followed regularly for up to 6 months after surgery.