Table 1 Primary ovarian carcinomas vs metastatic carcinomas from the digestive system

From: Ovarian carcinomas, including secondary tumors: diagnostically challenging areas

Tumor

Immunophenotypes

CK7

CK20

CA125

MUC5AC

HAM56

CEA

Ovarian carcinoma

      

 Serous

+

+

 

+

 

 Mucinous

+

+

−/+

+/−

+

+

 Endometrioid

+

+

 

+

Metastatic carcinoma

      

 Colon-rectum

+

−/+

+

 Stomach

+

+/−

+

−/+

+

 Appendix

−/+

+

+/−

 

+

 Pancreas

+

+

+

+

  1. CK7=cytokeratin 7; CK20=cytokeratin 20; +=usually positive; −=usually negative; +/−=can be positive or negative, but often positive; −/+=can be positive or negative, but often negative.