Mucins in neoplasms of pancreas, ampulla of Vater and biliary system

Table 2 Mucins expression in pancreatic neoplasms

	Normal	PanIN			PDCA	IPMN				MCN	ITPN
		PanIN-I	PanIN-II	PanIN-III		Gastric-type		Intestinal-type
						Non-invasive	Invasive	Non-invasive	Invasive
MUC1	2	2	3	4	4	1	4	1	4	CR	4
MUC2	1	1	1	1	1	1	1	4	4	1	1
MUC4	1	2	3	4	4	NA	NA	NA	NA	NA	NA
MUC5AC	1	4	4	4	4	4	4	4	4	CR	1

NA: Non available data; CR: Conflicting results; PanIN: Pancreatic intraepithelial neoplasia; IPMN: Intraductal papillary mucinus neoplasms; MCN: Mucinous cystic neoplasms; ITPN: Intraductal tubulopapillary neoplasms; MUC: Mucins. 1: No expression; 2: Low expression; 3: Moderate expression; 4: High expression.