Mitotic count (No./10 HPF), expression count (No./10 HPF) of Cyclin A2, Cyclin B1, Cyclin E, and PHH3, labeling indices (%) of Ki-67 and Survivin, and a maximum diameter of each benign, borderline, or malignant phyllodes tumor. The gene discussed is BIRC5; the disease is malignant phyllodes tumor.