Ann Arbor system, modified* | Paris staging system† | Spreading of lymphoma |
I1E | TI N0M0 | Mucosa, submucosa |
I2E | T2N0M0 | Muscularis propria, subserosa |
I2E | T3N0M0 | Serosa penetration |
I2E | T4N0M0 | Per continuitatem infiltration of neighbouring organs |
II1E | T1–4N1M0 | Regional lymph nodes (compartment I+II) |
II2E | T1–4N2M0 | Intra-abdominal distant lymph nodes |
IIIE | T1–4N3M0 | Extra-abdominal lymph nodes |
IV | T1–4 N0–3M1 | Diffuse or disseminated infiltration of distant or extra-gastrointestinal organs |
B1 | Bone marrow |