Gold et al. assessed the expression of the PAM4-reactive MUC1 by immunohistology in a study cohort of 55 invasive adenocarcinomas, 63 pancreatic intraepithelial neoplasias (PanIN), 36 intraductal papillary mucinous neoplasms (IPMN), and 11 normal pancreases [3]. The gene discussed is MUC1; the disease is pancreatic intraductal papillary-mucinous neoplasm.