Research Article
Types and Patterns of Colonic Polyps Encountered at a Tertiary Care Center in a Developing Country in South Asia
Table 2
Histology of polyps (all polyps considered).
| | | Cecum | Ascending colon | Transverse colon | Descending colon | Sigmoid colon | Rectum | Anal canal | Frequency | Percentage |
| Neoplastic | Tubulovillous adenoma | 2 | 3 | 9 | 8 | 15 | 25 | 1 | 63 | 33.5 | Tubular adenoma | 2 | 4 | 7 | 4 | 11 | 14 | 4 | 46 | 24.5 | Cancerized adenoma | 0 | 0 | 1 | 1 | 2 | 3 | 0 | 7 | 3.7 | Villous adenoma | 0 | 1 | 2 | 0 | 1 | 2 | 0 | 6 | 3.2 | Serrated adenoma | 0 | 0 | 0 | 1 | 1 | 3 | 0 | 5 | 2.7 | Adenocarcinoma | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 1.1 |
| Nonneoplastic | Hyperplastic polyp | 2 | 2 | 6 | 3 | 9 | 7 | 3 | 32 | 17.0 | Normal mucosa | 2 | 0 | 0 | 3 | 2 | 3 | 5 | 15 | 8.0 | Hamartomatous polyps | 0 | 1 | 1 | 1 | 0 | 2 | 0 | 5 | 2.7 | Juvenile polyposis | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 4 | 2.1 | Inflammatory polyps | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 3 | 1.6 |
| | Total | 8 | 11 | 26 | 23 | 43 | 63 | 14 | 188 | 100 | | Percentage | 4.3 | 5.9 | 13.8 | 12.2 | 22.9 | 33.5 | 7.4 | 100 | |
|
|