Correlation between t(11;18)(q21;q21) positivity and clinicopathological factors in patients with low grade MALT lymphoma
| Factors | API2–MLT positive cases (%) | API2–MLT negative cases (%) | p Value |
|---|---|---|---|
| †Fisher’s exact probability test; *χ2 test; ‡one case was excluded because the H pylori status was not determined. | |||
| EUS, endoscopic ultrasonography; MALT, mucosal associated lymphoid tissue; NS, not significant. | |||
| Primary organ (n=28) | |||
| Stomach | 2 (8%) | 22 (92%) | |
| Duodenum | 0 (0%) | 1 (100%) | <0.05* |
| Colon | 2 (67%) | 1 (33%) | |
| Helicobacter pylori status (n=27‡) | |||
| Positive | 1 (5%) | 20 (95%) | |
| Negative | 3 (50%) | 3 (50%) | <0.05† |
| Endoscopic appearance (n=28) | |||
| Superficial | 2 (10%) | 18 (90%) | |
| Mass forming | 1 (25%) | 3 (75%) | NS* |
| Thick | 1 (25%) | 3 (75%) | |
| Clinical stage (n=28) | |||
| IE1 | 1 (7%) | 14 (93%) | |
| IE2 | 1 (33%) | 2 (67%) | NS* |
| IIE or more | 2 (20%) | 8 (80%) | |
| Depth of invasion by EUS (n=28) | |||
| Mucosa | 0 (0%) | 15 (100%) | |
| Submucosa or beyond | 4 (31%) | 9 (69%) | <0.05† |
| Response of H pylori eradication (gastric cases only; n=18) | |||
| Complete or partial regression | 0 (0%) | 13 (100%) | |
| No regression | 1 (20%) | 4 (80%) | NS† |