Table 3.

Correlation between lymphatic and blood vessel invasion and lymph node status (n = 89) n (%)

Vascular invasion		Lymph node metastasis		P value
		Negative	Positive
LVI–HE	Negative	23 (71.8)	9 (28.2)
	Positive	5 (8.8)	52 (91.2)	0.001
LVI–IHC	Negative	20 (74.0)	7 (26.0)
	Positive	8 (13.0)	54 (87.0)	0.001
BVI–HE	Negative	22 (41.5)	31 (58.5)
	Positive	6 (16.6)	30 (83.4)	0.013
BVI–IHC	Negative	25 (38.5)	40 (61.5)
	Positive	3 (12.5)	21 (87.5)	0.019

IHC: Immunohistochemistry; HE: Hematoxylin and eosin; BVI: Blood vessel invasion; LVI: Lymphatic vessel invasion.