MUC6 and pancreatic intraductal papillary-mucinous neoplasm: In a review article, Yamanoi et al. [18] proposed that reduced expression of αGlcNAc on MUC6 in premalignant lesions of the stomach, pancreas (IPMN), and esophagus (Barrett’s esophagus) may serve as an early event marking tumor progression.