ARID1A and pancreatic intraductal papillary-mucinous neoplasm: Besides PanIN lesions, ARID1A deficiency could also facilitate intraductal papillary mucinous neoplasm (IPMN) formation through multiple pathways, including MYC-mediated protein synthesis (Wang et al., 2019) and SOX9/mTOR pathway (Kimura et al., 2018).