Table 1 Percentage of cases showing vascular endothelial growth factor and tissue factor expression across the adenoma–carcinoma sequence.
Phase of ACS | Sample size | Percentage expression of VEGF (%) | Percentage expression of TF (%) |
---|---|---|---|
Low grade dysplasia polyps | 47 | 57 | 63 |
High grade dysplasia polyps | 19 | 80 | 80 |
Intra‐polyp carcinoma | 30 | 90 | 67 |
Dukes' A carcinoma | 10 | 70 | 40 |
Dukes' B carcinoma | 26 | 58 | 52 |
Dukes' C carcinoma | 26 | 65 | 37 |
ACS, Adenoma–carcinoma sequence; TF, tissue factor; VEGF, vascular endothelial growth factor. VEGF expression was identified in 74% of the carcinoma specimens (including intra‐polyp carcinoma; IPC). In total, 51% of the carcinomas (including IPC) included in the study expressed TF.