Lugano Staging System

Staging of primary gastrointestinal lymphoma

StageExtent of lymphoma
IConfined to GI tract (single primary, or multiple non-contiguous lesions)
IIExtending into abdomen from primary GI site
II1 = local nodal involvement
II2 = distant nodal involvement
IIEPenetration of serosa to involve adjacent organ or tissues
Specify site of involvement, e.g. IIE (pancreas)
If both nodal involvement and involvement of adjacent organs, denote stage using both a subscript (1 or 2) and E, e.g. II1E (pancreas)
IVDisseminated extra-nodal involvement or concomitant supra-diaphragmatic nodal involvement
Adapted from Rohatiner et al, 1994.1