Table 1

Staging systems for gastrointestinal lymphomas

Ann Arbor system, modified*Paris staging system†Spreading of lymphoma
I1ETI N0M0Mucosa, submucosa
I2ET2N0M0Muscularis propria, subserosa
I2ET3N0M0Serosa penetration
I2ET4N0M0Per continuitatem infiltration of neighbouring organs
II1ET1–4N1M0Regional lymph nodes (compartment I+II)
II2ET1–4N2M0Intra-abdominal distant lymph nodes
IIIET1–4N3M0Extra-abdominal lymph nodes
IVT1–4 N0–3M1Diffuse or disseminated infiltration of distant or extra-gastrointestinal organs
B1Bone marrow

  • ↵* Modified by Musshoff43 and Radaszkiewicz et al.44

  • ↵† Ruskoné-Fourmestraux et al.46