Table 1
Classification of 1436 polyps removed colonoscopically and consecutively at McGill University Health Centre, Montreal, Canada between 1992 and 1994
| Diagnosis | RC | LC/R | Un site | Total | % |
|---|---|---|---|---|---|
| HP, hyperplastic polyp; LC/R, left colon/rectum; MP, mixed polyp; Other, hamartomatous, inflammatory or unclassified; RC, right colon; SA, serrated adenoma; SSA, variant hyperplastic polyp or sessile serrated adenoma; TA, tubular adenoma; TVA, tubulovillous adenoma; Un site, unknown site; VA, villous adenoma. | |||||
| Mixed polyps include: HP/SA (1), HP/TA (2), HP/TVA (1), SSA/SA (3), SSA/TA (2), SSA/VA (1), SA/TVA (4), SA/VA (2). | |||||
| TA | 186 | 402 | 125 | 713 | 50 |
| TVA | 38 | 128 | 33 | 199 | 14 |
| VA | 1 | 11 | 1 | 13 | 1 |
| HP | 39 | 233 | 30 | 302 | 21 |
| SSA | 12 | 18 | 1 | 31 | 2 |
| MP | 5 | 9 | 2 | 16 | 1 |
| SA | 1 | 16 | 1 | 18 | 1 |
| Other | 144 | 10 | |||
| 1436 | 100 | ||||
