Table 2.

Occurrence of biliary epithelial lesions related to cholangiocarcinoma.

	Peripheral ICC	Perihilar CC	HCC	cHC-CC
	(n = 37)	(n = 34)	(n = 25)	(n = 18)
Biliary fibroadenoma	0 (0%)	0 (0%)	0 (0%)	0 (0%)
Bile duct adenoma	0 (0%)	0 (0%)	1 (4%)	1 (5%)
Von Meyenburg complex	9 (24.3%)	6 (17.6%)	7 (28.0%)	6 (33.3%)
Bile duct adenoma-like lesion	12 (32.4%)	4 (11.8%)	3 (12%)	6 (33.3%)
Atypical small bile duct lesion	4 (10.8%)	0 (0%)	0 (0%)	1 (5.6%)
Biliary epithelial neoplasm (BilIN) 2/3
Perihilar bile duct	6 (16.2%)	18 (52.9%)	1 (4%)	2 (11.1%)
Peribiliary glands	4 (10.8%)	17 (50.0%)	0 (0%)	1 (5.6%)

CC: cholangiocarcinoma; ICC: intrahepatic CC; HCC: hepatocellular carcinoma; cHC-CC: combined hepatocellular cholangiocarcinoma.