Table 3.

Immunophenotype in ITAC, Non-ITAC, and SSH

	CK7	CK20	CDX2	P63b	S100	DOG1	SOX10
ITAC	11/15	15/15	13/13	0/10	0/10	1/10	0/6
Non-ITAC	21/21	0/20	3/20a	1/17	14/19	13/19	7/9
SSH	5/5	0/5	2/4a	0/3c	5/5	4/4	1/1

ITAC intestinal type adenocarcinoma, SSH sinonasal seromucinous hamartoma, Non-ITAC non-intestinal type adenocarcinoma

^aMorules only

^bOnly staining with more than isolated cells staining is counted here

^cOne case had a very focal delimiting p63 positive basal/myoepithelial cell layer