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

Table 3 Mucins expression in neoplasms of biliary system

	BilIN			EHBDC	IPNB
	BilIN-I	BilIN-II	BilIN-III		Pancreatobiliary-type		Intestinal-type
					Non-invasive	Invasive	Non-invasive	Invasive
MUC1	2	3	4	4	2	4	1	3
MUC2	1	1	1	3	ΝΑ	4	ΝΑ	3
MUC4	NA	NA	NA	4	ΝΑ	4	ΝΑ	3
MUC5AC	4	4	4	4	4	4	4	4

NA: Non available data; BilIN: Biliary intraepithelial neoplasia; EHBDC: Extrahepatic bile ducts; IPNB: Intraductal papillary neoplasm of the bile ducts; MUC: Mucins. 1: No expression; 2: Low expression; 3: Moderate expression; 4: High expression.