Large mediastinal mass in Hodgkinʼs disease

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Abstract
Sixty-eight untreated patients with Hodgkin''s disease (HD), stages I-III, presenting with a large mediastinal mass were treated as follows: patients with good-risk HD (lymphocyte predominant or nodular sclerosis and no B symptoms) stages I and II were treated by randomization with involved field radiotherapy (IF RT) or IF RT plus 6 cycles of combination chemotherapy (CT) [vincristine, procarbazine, vinblastine, chlorambucil, prednisone]. Those with poor-risk HD (presence of B symptoms or with other histologic types) stages I and II and all patients with stage III were treated by randomization with total nodal radiation (TNR) or TNR + CT. Complete remission (CR) was achieved in 66 of 68 patients (97%) with the initial RT. A significantly longer duration of remission (P = 0.001), but not of survival (P = 0.08), was observed in patients treated with RT + CT compared to RT alone. Significantly longer duration of remission (P = 0.01), but not of survival, was observed in patients with good-risk stages I-II treated with RT + CT. In this category, remission and survival was better with RT + CT than with RT alone in stage III, but these differences were not statistically significant. In poor-risk patients stages I-II, a trend for longer remission and survival (not significant) was observed in patients treated with RT + CT; in stage III, both treatment modalities gave similar poor results. Both treatment modalities were well tolerated by most patients. One patient died with radiation pneumonitis shortly after completion of TNR. One patient developed a malignant schwannoma after treatment with IF RT; another one developed acute nonlymphocytic leukemia after TNR + CT. Decrease in the transverse diameter of the heart without overt manifestations of cardiac disease was observed in 59% of the patients evaluated for this parameter.