The level of cystic Ngal was higher in the mucinous lesions than in the SCN (median and IQR 729 ng/dL [521 to 769], n = 24 vs. 388 ng/dL [216 to 450], n = 6, p = 0.0088—Mann–Whitney test), while patients with a cystic neoplasm exhibited significantly higher values of CEA than those with pseudocysts (p = 0.001) (Table 2). This evidence concerns the gene CEACAM5 and cystic neoplasm.