title: Primary extranodal non-Hodgkin's lymphoma.
abstract: A total of 52 of 238 patients (22%) with non-Hodgkin's lymphoma presented with disease in a primary extranodal site. The gastrointestinal tract was the commonest site involved (50%) and diffuse large cell was the commonest histological sub-type of the lymphoma (64%). Survivorship analysis of these patients, treated predominantly with chemotherapy, suggests that long-term survival is associated with: low-grade malignancy--median survival greater than 120 months; localized disease or spread of disease confined to the regional lymph nodes--median survival 65.5 months; and the use of aggressive combination chemotherapy for intermediate grade malignancy when the disease is localized or spread is confined to the regional lymph nodes--median survival greater than 110 months.
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000473:pathology; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008228:Lymphoma, Non-Hodgkin / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D011379:Prognosis