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Table 2 Pathological features of patients with localized PG-DLBCL
| Characteristics | N (%) | 5-year RFS | P value | 5-year OS | P value | |
|---|---|---|---|---|---|---|
| Tumor morphology | Ulcerative type | 12 (12) | 87.5 ± 11.7 % | 0.251 | 87.5 ± 11.7 % | 0.244 |
| Diffuse type | 18 (18) | 68.0 ± 12.0 % | 66.7 ± 12.4 % | |||
| Massive type | 71 (70) | 86.9 ± 4.7 % | 88.1 ± 4.6 % | |||
| Depth of invasion | Mucosa/submucosa | 0 | – | 0.022 | – | 0.029 |
| Muscularis propria/subserosa | 40 (40) | 95.8 ± 4.1 % | 94.7 ± 5.1 % | |||
| Beyond serosa (visceral peritoneum) without invasion of adjacent structures | 43 (42) | 71.3 ± 8.1 % | 73.7 ± 8.0 % | |||
| Involvement of adjacent structures or organs | 18 (18) | 81.1 ± 9.9 % | 80.4 ± 10.2 % | |||
| Involvement of regional lymph nodes | Negative | 48 (48) | 90.8 ± 5.1 % | 0.038 | 89.4 ± 6.0 % | 0.048 |
| Positive | 53 (52) | 75.8 ± 6.7 % | 77.8 ± 6.5 % | |||
| Invasion to adjacent structures or organs | No | 79 (78) | 87.8 ± 4.4 % | 0.024 | 86.5 ± 4.8 % | 0.028 |
| Yes | 22 (22) | 69.4 ± 10.5 % | 73.6 ± 10.2 % | |||
| High level of Ki-67 | Negative | 76 (75) | 90.1 ± 3.8 % | <0.001 | 91.3 ± 3.8 % | <0.001 |
| Positive | 25 (25) | 52.6 ± 14.4 % | 48.0 ± 14.5 % | |||
| Bcl-2 expression | Negative | 53 (52) | 97.8 ± 2.2 % | <0.001 | 97.6 ± 2.4 % | <0.001 |
| Positive | 48 (48) | 65.8 ± 8.2 % | 65.8 ± 8.7 % | |||
