CD80 and pancreatic intraductal papillary-mucinous neoplasm: Consistent with our research results, numerous studies have suggested that glycosylated proteins such as CEA (You et al., 2016), CA19-9 (Ciprani et al., 2020), B7.1 (Aronsson et al., 2018), and MUC7 (Carrara et al., 2011) are related to IPMN progression, therefore supporting the idea of glycosylated proteins as early diagnostic indicators of IPMN.