Table 1. Staging criteria for lymphoma according to Lugano classification.

Stage	Involvement
I	One node, or a group of adjacent nodes, or single extranodal lesions without nodal involvement
II	Two or more nodal groups on the same side of the diaphragm, or stage I or II by nodal extent with limited contiguous extra-nodal involvement
II bulky	II as above with “bulky” disease
III	Nodes on both sides of the diaphragm; nodes above the diaphragm with spleen involvement
IV	Additional noncontiguous extra-lymphatic involvement