SOX9 and pancreatic neoplasm: Recently, it was shown that Sox9 is expressed during premalignant and malignant lesions such as mucinous cystic neoplasias (MCNs), intraductal papillary mucinous neoplasias (IPMNs), pancreatic intraepithelial neoplasias (PanINs), and pancreatic ductal adenocarcinoma (PDAC) (Table 2) [34, 107], which is the most common pancreatic cancer and develops from cells lining pancreatic ducts [108].