Table 4. PD-L1 expression in intrahepatic lympoeithelioma-like cholangiocarcinoma (LELCC) and intrahepatic cholangiocarcinoma (IHCC).

	LELCC (n= 13)	IHCC (n = 15)	P
PD-L1 expression in tumor cells			0.011
+	10	4
−	3	11
PD-L1 expression in immune cells			< 0.001
+	13	3
−	0	12
EBER			< 0.001
+	8	0
−	5	15