Table 3.
Serrated Polyp Location and BRAF and KRAS Mutations
|
BRAF mutation (%) |
KRAS mutation (%) |
|||||||
|---|---|---|---|---|---|---|---|---|
| HPS group |
Control group |
HPS group |
Control group |
|||||
| Polyp | Proximal | Distal | Proximal | Distal | Proximal | Distal | Proximal | Distal |
| HP | 8/13 (62) | 5/8 (63) | 1/2 (50) | 9/22 (41) | 0/13 | 3/8 (38) | 0/2 | 5/22 (23) |
| SSA | 25/30 (83) | 5/8 (63) | 10/18 (56) | 0/1 | 0/30 | 1/8 (13) | 2/17 (12) | 0/1 |
| TSA | 1/1 (100) | 2/2 (100) | 0/0 | 0/0 | 0/1 | 0/2 | 0/0 | 0/0 |
| MP | 2/2 (100) | 0/0 | 0/0 | 0/0 | 0/2 | 0/0 | 0/0 | 0/0 |
All values are expressed as number/total number (percentage).
HP, hyperplastic polyps; SSA, sessile serrated adenomas; TSA, traditional serrated adenomas; MP, mixed polyp.