Table 2.
Staging of all patients according to the InSIGHT Polyposis Staging System for Colon (IPSS‐Colon)9
| Stage | Polyp Description | n | % |
|---|---|---|---|
| 0 | < 20 polyps, all<5mm | 0 | 0 |
| 1a | 20‐200 polyps,most <5mm, none >1cm | 51 | 51.5 |
| 2a | 200‐500 polyps, <10 that were >1cm | 13 | 13.1 |
| 3a | 500‐1000 polyps or any number of polyps if 10‐50 were >1cm and amenable to complete polypectomy | 0 | 0 |
| 4a | >1000 polyps and/or any polyps grown to confluence and not amenable to simple polypectomy, or adenoma with high‐grade dysplasia | 35 | 35.4 |
| Total | 99 | 100 |
a
Presence of high‐grade dysplasia warrants upstaging of patient to stage 4.