ocr: TABLE 44.2-6. St. Jude Children's Research Hospital Staging System for Non-Hodgkin's Lymphoma Stage Descraption Stage I A - single tumor (extranodal) or single anatomic area (nodal), with the exclusion of mediastinum or abdomen Stage II A single tumor (extranodal with regional node involve- ment Two or more nodal areas on the same side of the dia- phragm Two single (extranodal) tumors with or without regional node involvement on the same side of the diaphragm A primary gastromtestinal tract tumor, usually in the ileocecal area, with or without involvement of associated mesenteric nodes only* S ...