Table 3 Histopathological findings in the patients with undifferentiated gastric cancer according to Helicobacter pylori infection status
From: Effect of Helicobacter pylori infection on malignancy of undifferentiated-type gastric cancer
UD-E (A) | UD-I (B) | UD-U (C) | Significance | |
|---|---|---|---|---|
Maximum lesion diameter, mean ± SD | 19.3 ± 11.7 | 18.6 ± 10.2 | 10.1 ± 5.4 | P < 0.01 (A vs B vs C) p = 0.001 (C vs A) p = 0.005 (B vs C) NS (A vs B) |
Pathological type, % of pure signet ring cell CA | 50.0% (14/28) | 28.9% (11/38) | 87.5% (21/24) | p < 0.001 (A vs B vs C) p < 0.001 (B vs C, C vs A) NS (A vs B) |
Depth, % of SM invasive cancer | 14.3% (4/28) | 10.5% (4/38) | 0% (0/24) | NS (A vs B vs C) NS (A vs B, B vs C, C vs A) |
Lymphovascular invasion, % of undifferentiated CA | 10.7% (3/28) | 0% (0/38) | 0% (0/24) | NS (A vs B vs C) NS (A vs B, B vs C, C vs A) |