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Table 2 Pathological features of patients with localized PG-DLBCL

From: Localized primary gastrointestinal diffuse large B cell lymphoma received a surgical approach: an analysis of prognostic factors and comparison of staging systems in 101 patients from a single institution

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 %
  1. Abbreviations: PG-DLBCL primary gastrointestinal diffuse large B cell lymphoma, RFS relapse-free survival, OS overall survival