Using a novel antibody-lectin sandwich array (ALSA) that targets glycan moieties on proteins [88], Haab et al. measured protein expression and glycosylation of MUC1, MUC5AC, MUC16, CEA, and other proteins associated with pancreatic cancer in 53 cyst fluid samples from surgically resected lesions (17 MCN, 15 IPMN, 15 SCA, and 9 pseudocysts) [82]. Here, CEACAM5 is linked to cyst.