Difference of Morphology and Immunophenotype between Central and Peripheral Squamous Cell Carcinomas of the Lung

Table 3

Immunohistochemical findings of central and peripheral squamous cell carcinomas.

	Central	Peripheral	𝑃 value
	Positive cases/total cases (%)
CK7	5/10 (50)	16/30 (53)	0.85
p63	9/9 (100)	22/27 (81)	0.16
CK14	6/9 (67)	13/27 (48)	0.34
TTF-1	1/10 (19)	2/28 (7)	0.77
Napsin A	0/10 (0)	0/28 (0)	N/A
CK34𝛽E12	10/10 (100)	27/30 (90)	0.3
CK5/6	3/10 (30)	11/29 (38)	0.65
p53	8/10 (80)	21/28 (75)	0.56
Entrapped pneumocytes (CK7)	1/10 (10)	14/30 (47)	0.04