Table 1 Clinicopathological features of the cases for diagnostic endoscopic images
Variables | NBI Diagnosis by JNET classification | ||||
|---|---|---|---|---|---|
Type 1 [n = 22] | Type 2A [n = 105] | Type 2B [n = 33] | Type 3 [n = 20] | Total [n = 180] (%) | |
Tumor size (mm, mean ± SD) | 21.0 ± 11.7 | 22.2 ± 13.0 | 27.0 ± 15.5 | 19.8 ± 7.6 | 22.8 ± 13.1 |
Tumor location | |||||
Right colon | 16 (72.7) | 44 (41.9) | 13 (39.4) | 6 (30.0) | 80 (44.4) |
Left colon | 6 (27.3) | 27 (25.7) | 10 (30.3) | 6 (30.0) | 49 (27.2) |
Rectum | 0 (0) | 34 (32.4) | 10 (30.3) | 8 (40.0) | 51 (28.3) |
Gross type | |||||
Superficial | 18 (81.8) | 27 (25.7) | 11 (33.3) | 11 (55.0) | 70 (38.9) |
Polypoid | 4 (18.2) | 78 (74.3) | 22 (66.7) | 9 (45.0) | 110 (61.1) |
Histology | |||||
Hyperplastic | 4 (18.2) | 0 (0) | 0 (0) | 0 (0) | 4 (2.2) |
SSP | 17 (77.3) | 0 (0) | 0 (0) | 0 (0) | 17 (9.5) |
LGD | 1 (4.5) | 86 (81.9) | 7 (21.2) | 0 (0) | 94 (52.2) |
HGD | 0 (0) | 18 (17.1) | 9 (27.3) | 1 (5.0) | 28 (15.6) |
SM-s carcinoma | 0 (0) | 1 (1.0) | 3 (9.1) | 0 (0) | 4 (2.2) |
SM-d carcinoma | 0 (0) | 0 (0) | 14 (42.4) | 19 (95.0) | 33 (18.3) |