Table 3.
InSIGHT Polyposis Staging System for the Rectum (IPSS‐Rectum)9 staging of 53 patients subjected to colon surgery with rectal preservation
| Stage | Polyp Description | n | % |
|---|---|---|---|
| 0 | 0‐10 polyps, all <5mm | 0 | 0 |
| 1a | 10‐25 polyps, most <5mm, none >1cm | 50 | 94.3 |
| 2a | 10‐25 polyps, any >1cm, amenable to complete removal | 0 | 0 |
| 3a | >25 polyps amenable to complete removal, any incompletely removed sessile polyp, or any evidence of low gastrointestinal bleeding even if incompletely excised | 0 | 0 |
| 4 | >25 polyps not amenable to complete removal or any incompletely excised sessile polyp exhibiting high‐grade dysplasia; any invasive cancer | 3 | 5.7 |
| Total | 53 | 100 |
a
Presence of high‐grade dysplasia warrants upstaging of patient to stage 4.