Table 13-5 MODIFIED ANN ARBOR STAGING SYSTEM FOR PRIMARY GASTRIC LYMPHOMAS* IE Localized involvement of the stomach without lymph node metastases IE-1 Early gastric lymphoma; tumor confined to the mucosa and submucosa IE-2 Lymphoma extends beyond the submucosa IIE Gastric lymphoma of any depth of infiltration with lymph node metastases IIE-1 Gastric lymphoma with regional node metastases IIE-2 Gastric lymphoma with lymph node metastases beyond regional nodes IIIE Localized involvement of the stomach with lymph nodes on both sides of the diaphragm (from a practical point almost never applies to the stomach) IVE Gastric lymphoma with or without associated lymph node metastases with diffuse lymphomatous dissemination beyond the gastrointestinal tract _______________________________________________________________ *Table obtained from reference 98.