MKI67 and pancreatic neoplasm: A series of studies have demonstrated that high Ki67 expression is correlated with poor prognosis in prostate, lung, serous ovarian, clear-cell renal cell and pancreatic cancers (Adams et al. 2009; Gayed et al. 2014; Genç et al. 2018; Lei et al. 2013; Pascale et al. 2016,).