| Type of tumor | Immunohistochemical characteristics |
|---|---|
| Colorectal adenocarcinoma | 15% CK7+, <90% CK20+, >95% CDH17+, 90% mCEA+, <90% CDX2+, 80% SATB2+ |
| Merkel cell carcinoma | <10% CK7+, >90% CK20+, >90% ?ALK, 90% Synaptophysin, 80% PAX5+, 80% SATB2+, >70% Chromogranin, 70% PAX8+, 90% CD56+ |
| Small cell carcinoma of salivary glands | 30% CK7+, 70% CK20+, 90% Chromogranin, 70% Synaptophysin+, 30% CD56+ |