Table 2.
Immunohistochemistry (IHC) findings stratified by histological subtype.
| Biomarker (IHC) | Colon (N = 11) | Appendix (N = 5) | p-value |
|---|---|---|---|
| COX-2 | 80% | 100% | 0.52 |
| ERCC1 | 100% | 100% | 1.00 |
| PTEN | 100% | 100% | 1.00 |
| SPARC | 36% | 20% | 1.00 |
| TOP2A | 100% | 80% | 0.31 |
| TOPO1 | 100% | 100% | 1.00 |
| TS | 82% | 80% | 1.00 |
COX-2, cyclooxygenase-2; ERCC1, excision repair cross-complementing rodent repair deficiency, complementation group 1; PTEN, phosphatase and tensin homolog; SPARC, secreted protein acidic cysteine-rich; TOP2A, topoisomerase (DNA) 2 alpha; TOPO1, topoisomerase (DNA) 1; TS, thymidylate synthase.