Phyllodes tumour

Phyllodes tumors, are a rare type of biphasic fibroepithelial mass that form from the periductal stromal and epithelial cells of the breast. They account for less than 1% of all breast neoplasms. They were previously termed cystosarcoma phyllodes, coined by Johannes Müller in 1838, before being renamed to phyllodes tumor by the World Health Organization in 2003. Phullon, which means 'leaf' in Greek, describes the unique papillary projections characteristic of phyllodes tumors on histology. Diagnosis is made via a core-needle biopsy and treatment is typically surgical resection with wide margins (>1 cm), due to their propensity to recur.

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