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Table 3 Revised staging system for primary nodal lymphomas*

From: The imaging conundrum of hepatic lymphoma revisited

Stage

Involvement

Extranodal (E) status

Limited

Stage I

One node or a group of adjacent nodes

Single extranodal lesion without nodal involvement

Stage II

Two or more nodal groups on the same side of the diaphragm

Stage I or II by nodal extent with limited contiguous extranodal involvement

Stage II bulky

II as above with “bulky” disease

Not applicable

Advanced

Stage III

Nodes on both sides of the diaphragm; nodes above the diaphragm with spleen involvement

Not applicable

Stage IV

Additional non-contiguous extralymphatic involvement

Not applicable

  1. *Adapted from reference [38]