iii) Pleural Effusion and Ascites: The presence of a pleural effusion or ascites will be considered as evidence of Hodgkin's disease even if cytological examination is negative. These patients would be assessed as having probable Stage IV disease and therefore would be ineligible. Patients assessed on Xray as having pleural thickening or "blunting" of the costophrenic angle only may be eligible. iv) Extra-nodal vs. Stage IV Disease: Patients with disease involving a single extra-nodal site may be considered as "limited-stage" provided all disease can be included in a standard radiation field. Patients with extra-nodal disease that cannot be included in such a field (eg, lung, bone) or with multiple sites of extra-nodal disease are not eligible for this trial.