Staging of gastric MALT lymphoma: comparison of different systems
| . | Lugano Staging System for gastrointestinal lymphomas113 . | TNM Staging System adapted for gastric lymphoma44 . | Ann Arbor stage . | Tumor extension . |
|---|---|---|---|---|
| Stage I | Confined to GI tract (single primary or multiple, noncontiguous) | T1 N0 M0 | IE | Mucosa, submucosa |
| T2 N0 M0 | IE | Muscularis propria | ||
| T3 N0 M0 | IE | Serosa | ||
| Stage II | Extending into abdomen | |||
| II1 = local nodal involvement | T1-3 N1 M0 | IIE | Perigastric lymph nodes | |
| II2 = distant nodal involvement | T1-3 N2 M0 | IIE | More distant regional lymph nodes | |
| Stage IIE | Penetration of serosa to involve adjacent organs or tissues | T4 N0 M0 | IE | Invasion of adjacent structures |
| Stage IV | Disseminated extranodal involvement or concomitant supra | T1-4 N3 M0 | IIIE | Lymph nodes on both sides of the diaphragm/distant metas- |
| diaphragmatic nodal involvement | T1-4 N0-3 M1 | IVE | tases (eg, bone marrow or additional extranodal sites) |
| . | Lugano Staging System for gastrointestinal lymphomas113 . | TNM Staging System adapted for gastric lymphoma44 . | Ann Arbor stage . | Tumor extension . |
|---|---|---|---|---|
| Stage I | Confined to GI tract (single primary or multiple, noncontiguous) | T1 N0 M0 | IE | Mucosa, submucosa |
| T2 N0 M0 | IE | Muscularis propria | ||
| T3 N0 M0 | IE | Serosa | ||
| Stage II | Extending into abdomen | |||
| II1 = local nodal involvement | T1-3 N1 M0 | IIE | Perigastric lymph nodes | |
| II2 = distant nodal involvement | T1-3 N2 M0 | IIE | More distant regional lymph nodes | |
| Stage IIE | Penetration of serosa to involve adjacent organs or tissues | T4 N0 M0 | IE | Invasion of adjacent structures |
| Stage IV | Disseminated extranodal involvement or concomitant supra | T1-4 N3 M0 | IIIE | Lymph nodes on both sides of the diaphragm/distant metas- |
| diaphragmatic nodal involvement | T1-4 N0-3 M1 | IVE | tases (eg, bone marrow or additional extranodal sites) |