Table 1.
Distinct endoscopic characteristics between sessile serrated adenoma/polyps and hyperplastic polyps
| SSA/Ps | Hyperplastic polyps | |
| Conventional endoscopic features | ||
| Location | Proximal | Distal |
| Size of tumor | > 5 mm | ≤ 5 mm |
| Color | Pale | Pale |
| Morphology | Flat elevated | Flat elevated |
| Mucus cap | Yes | No |
| Endoscopic features by using NBI | Irregular shape | - |
| Small dark dots | ||
| Dilated and branching vessels | ||
| Varicose microvascular vessels | ||
| Magnifying chromoendoscopic features | Type II-open pit pattern | Type II pit pattern |
SSA/P: Sessile serrated adenoma/polyp; NBI: Narrow-band imaging.