Table 2 Comparison of clinicopathological characteristics in widths of wall rigidity-positive lesions and -negative lesions under profile view of barium enema
| Â | Horizontal rigidity-positive | Horizontal rigidity-negative | P-value | Vertical rigidity -positive | Vertical rigidity -negative | P-value | |
|---|---|---|---|---|---|---|---|
| Â | (88 lesions) | (57 lesions) | (108 lesions) | (37 lesions) | |||
Tumor size, n (%) | < 20 mm | 55 (62.5) | 36 (63.2) | 1.0 | 68 (63) | 23 (62.2) | 1.0 |
|  | ≥20 mm | 33 (37.5) | 21 (36.8) | 40 (37) | 14 (37.8) | ||
Location, n (%) | Right side of the colon | 22 (25) | 16 (28.1) | 0.70 | 30 (27.5) | 8 (21.6) | 0.52 |
| Â | Left side of the colon | 66 (75) | 41 (71.9) | 78 (72.2) | 29 (78.4) | ||
Morphology, n (%) | Protruding type | 55 (62.5) | 20 (35.1) | 0.002 | 60 (55.6) | 15 (40.5) | 0.13 |
| Â | Superficial type | 33 (37.5) | 37 (64.9) | 48 (44.4) | 22 (59.5) | ||
JNET classification, n (%) | 1/2A/2B | 39 (44.3) | 43 (75.4) | 0.0003 | 54 (50) | 28 (75.7) | 0.007 |
| Â | 3 | 49 (55.7) | 14 (24.6) | 54 (50) | 9 (24.3) | ||
Pit pattern classification, n (%) | I/II/IIIL/IIIs/IV/VI low- irregularity | 11 (12.5) | 18 (31.6) | 0.01 | 17 (15.7) | 12 (32.4) | 0.03 |
| Â | VI high-irregularity/VN | 77 (87.5) | 39 (68.4) | 91 (84.3) | 25 (67.6) | ||
Histologic type, n (%) | Well/mod/pap | 86 (97.7) | 57 (100) | 0.52 | 106 (98.2) | 37 (100) | 1.0 |
| Â | Por/sig/muc | 2 (2.3) | 0 (0) | 2 (1.8) | 0 (0) | ||
Depth of submucosal invasion, n (%) | < 1.8 mm | 12 (13.6) | 41 (71.9) | 0.0001 | 24 (22.2) | 29 (78.4) | 0.0001 |
|  | ≥1.8 mm | 76 (86.4) | 16 (28.1) | 84 (77.8) | 8 (21.6) | ||
Lympho-vascular invasion, n (%) | Positive | 38 (43.2) | 10 (17.5) | 0.002 | 41 (38) | 7 (18.9) | 0.03 |
| Â | Negative | 50 (56.8) | 47 (82.5) | 67 (62) | 30 (81.1) | ||
Tumor budding, n (%) | Grade 1 | 78 (88.6) | 53 (93) | 0.57 | 96 (88.9) | 35 (94.6) | 0.52 |
| Â | Grade 2/3 | 10 (11.4) | 4 (7) | 12 (11.1) | 2 (5.4) | ||
Lymph node metastasis, n (%) | Positive | 7 (8.6) | 4 (12.1) | 0.73 | 9 (9.6) | 2 (10) | 1.0 |
(Only lesions removed surgically) | Negative | 74 (91.4) | 29 (87.9) | 85 (90.4) | 18 (90) | ||