Rational therapeutic strategy for T2 gallbladder carcinoma based on tumor spread

Table 2 ss score and clinicopathological factors n (%)

	ss min (n = 4)	ss med (n = 10)	ss mas (n = 16)
h-inf (+)	0	5 (50.0)	2 (12.5)
b-inf (+)	0	0	1 (6.3)
ly (+)	0	6 (60.0)	15 (93.8)
v (+)	0	0	5 (35.7)
pn (+)	0	1 (10.0)	6 (37.5)
n (+)	0	3 (30.0)	4 (25.0)

h-inf: Hepatic invasion; b-inf: Bile duct invasion; ly: Lymphatic invasion; v: Venous invasion; pn: Peri-neural invasion; n: Lymph node metastasis.