Phyllodes tumours (PTs) of the breast are uncommon fibroepithelial neoplasms, comprising 0.3 – 1.0% of all primary breast malignancies in Western countries, but accounting for a higher proportion of primary breast tumours in Asian countries. They are graded as benign, borderline or malignant based on the World Health Organisation (WHO) classification, according to a constellation of 5 histologi...
