Table 3.
Morphology of 137 cases of early stage colorectal cancer under endoscopy
| Morphology | Type | n | Ratio |
| Polypoid | I | 131 | 95.6 |
| Elevated | IIa | 2 | 1.4 |
| Flat | IIb | 1 | 0.7 |
| Depressed | IIc or IIc + IIa | 3 | 2.3 |
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