Table 2

‚ÄÉHistological types and immunohistochemical profile

CaseHistologyCK7CK20VillinCDX-2
CK, cytokeratin.
1Colonic, grade 3Negative3+3+3+
2Papillary, grade 3Negative3+3+3+
3Mixed (papillary with mucinous component), grade 3Negative3+3+3+
4Colonic grade 2Negative1+3+3+
5Papillary, grade 21+3+3+3+
6Papillary, grade 21+3+3+3+
7Colonic, grade 21+3+3+3+
8Colonic, grade 22+3+3+3+
9Papillary, grade 23+2+3+2+
10Colonic, grade 23+3+3+3+
11Papillary nasopharyngeal adenocarcinoma3+NegativeNegativeNegative
12Sinonasal papillary low grade adenocarcinoma3+NegativeNegativeNegative