Table III.

Results of immunohistochemical analysis.

Protein	PSC (n=12)	PA (n=12)	P-value
E-cadherin	1.0 (0–3.3)	12.0 (9.0–12.0)	<0.0001
Vimentin	12.0 (12.0–12.0)	1.0 (1.0–1.0)	<0.0001
Snail-1/Snail-2	6.0 (2.0–8.0)	10.5 (6.0–12.0)	0.0715
p-p38 MAPK	1.5 (1.0–2.0)	2.0 (1.0–5.0)	0.3434
NANOG	3.4 (2.7–4.7)	11.5 (8.0–12.0)	0.0001

Data are presented as the median and interquartile range. PSC, pulmonary sarcomatoid carcinoma; PA, pulmonary adenocarcinoma; p-p38 MAPK, phosphorylated p38 mitogen-activated protein kinase; Snail; zinc finger protein SNAI; NANOG, homeobox protein NANOG.