Table 4.

Criteria for phyllodes classification according to WHO (12)

Criteria	Benign	Borderline	Malignant
Stromal cellularity and atypia	Minimal	Moderate	Marked
Stromal overgrowth	Minimal	Moderate	Marked
Mitosis/ 10 high power field	0-4	5-9	≥10
Tumor margins	Well-circumscribed with pushing tumor margins	Zone of microscopic invasion around tumor margins	Infiltrative tumor margins