Table 1.
Finding in colon | Number of cases with positive FOBT and DNA amplification | Number of cases with K-ras mutation | Proportion of K-ras positivity |
---|---|---|---|
Carcinoma+ Adenoma | 48 | 16 | 33.0% |
Adenocarcinoma | 23 | 8 | 34.8% |
Adenoma | 25 | 8 | 32.0% |
All other* | 82 | 16 | 19.5% |
No follow up | 50 | 7 | 14.0% |
Total positive FOBT | 180 | 39 | 21.7% |
Includes non-adenomatous polyps, diverticuli, IBD, hemorrhoids and upper GI findings