MKI67 and neoplasm: Similarly, Zhao et al. found that for patients with hepatocellular carcinoma and high expression of Ki-67 (Ki − 67 ≥ 20%), adjuvant hepatic arterial chemoembolization after radical liver tumour resection effectively reduced the probability of postoperative tumour recurrence and prolonged patients' OS; high expression of Ki-67 in postoperative follow-up assessment of patients with hepatocellular carcinoma is an indicator of adjuvant TACE therapy [41].