Endoscopic type, location, and grade of dysplasia of colorectal adenomas and early adenocarcinomas (sm)
| Protruding | Flat | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Type | Right | Left/rectum | Right | Left/rectum | Total No (%) | ||||
| *Fisher's exact probability test= 0.003. | |||||||||
| sm, submucosal invasion; LGD, low grade dysplasia; HGD, high grade dysplasia. | |||||||||
| Adenoma | |||||||||
| LGD | 358 | 473 | 28 | 22 | 881 (90.5) | ||||
| HGD | 17 | 48 | 7 | 4 | 76 (7.9) | ||||
| Early (sm) carcinoma | 3 | 8 | 2 | 3 | 16 (1.6) | ||||
| Total (sm) | 11* | 5* | |||||||
| 378 | 529 | 37 | 29 | 973 (100.0) | |||||
| Total | 907 | 66 | |||||||