(b) Nodal stage

Pathologic features	Variables	N0		N1		N2		Total		Chi- square Test
		Number	%	Number	%	Number	%	Number	%	p
S100A4 expression	Absent	15	19.7	0	0	1	2.6	16	10.8	0.001
	Present	61	80.3	34	100	37	97.4	132	89.2
	Total	76	100	34	100	38	100	148	100
Distribution Of Tumor Tissue Staining	Absent	15	19.7	0	0	1	2.6	16	10.8	0.001
	Superficial	29	38.2	8	23.5	3	7.9	40	27.0
	Deep	8	10.5	2	5.9	5	13.2	15	10.1
	General	24	31.6	24	70.6	29	76.3	77	52.0
	Total	76	100	34	100	38	100	148	100