| Age, median, y | 63 |
| Male:female ratio | 1:1 |
| Localized disease (stage I) | 88% |
| Bone marrow infiltration | 7% |
| Main symptoms at presentation | |
| Epigastric or abdominal pain | 53% |
| Dyspepsia | 32% |
| Nausea and vomiting | 8% |
| Gastric bleeding | 2% |
| B symptoms | 1% |
| Elevated LDH | 1% |
| Elevated β2-microglobulin | 4% |
| Main endoscopic findings | |
| Erythema | 30% |
| Erosions | 23% |
| Ulcers | 47% |
| Gastric localization | |
| Antrum | 41% |
| Body | 12% |
| Fundus | 11% |
| Multifocal | 33% |
| Gastric stump | 3% |
| Age, median, y | 63 |
| Male:female ratio | 1:1 |
| Localized disease (stage I) | 88% |
| Bone marrow infiltration | 7% |
| Main symptoms at presentation | |
| Epigastric or abdominal pain | 53% |
| Dyspepsia | 32% |
| Nausea and vomiting | 8% |
| Gastric bleeding | 2% |
| B symptoms | 1% |
| Elevated LDH | 1% |
| Elevated β2-microglobulin | 4% |
| Main endoscopic findings | |
| Erythema | 30% |
| Erosions | 23% |
| Ulcers | 47% |
| Gastric localization | |
| Antrum | 41% |
| Body | 12% |
| Fundus | 11% |
| Multifocal | 33% |
| Gastric stump | 3% |