Prognosis after resection for hepatitis B virus-associated intrahepatic cholangiocarcinoma

Table 5 Comparison of the pathological factors according to the extent of lymph node dissection

Variable	LND (-)	LN sampling	Regional LND	P value
Cirrhosis				0.439
Yes	17	13	18
No	18	9	10
Gross type				0.617
MF	24	17	22
PI + IG	11	5	6
Differentiation				0.478
Well or Moderate	25	15	23
Poor	10	7	5
Capsule formation				0.931
Yes	14	8	10
No	21	14	18
Tumor number				0.512
Single	27	14	18
Multiple	8	8	10
Tumor size				0.145
< 5 cm	21	12	10
≥ 5 cm	14	10	18
Pathologica LN metastasis				0.085
Yes	NA	2	9
No	NA	20	19
Vascular invasion				0.181
Yes	2	3	6
No	33	19	22

MF: Mass-forming; PI: Periductal infiltrating; IG: Intraductal growth; LN: Lymph node; LND: Lymph node dissection; NA: Not available.