The significance of residual mediastinal abnormality on the chest radiograph following treatment for Hodgkin's disease.

Abstract
The chest radiographs (CXRs) of 110 patients with mediastinal Hodgkin's disease (HD) were reviewed to determine the incidence, degree, and significance of mediastinal abnormalities following treatment. Residual mediastinal abnormalities were defined as either minimal or measurable, and occurred in 64% of all patients at the completion of treatment, but were more common in those with bulky mediastinal disease at presentation (40 of 48, 83%). Fifty-one patients with a mediastinal abnormality at the end of treatment had follow-up films available. Partial or complete regression of the abnormality occurred by 1 year in 30 of these patients (59%). Over a median follow-up of 80.5 months, there were more relapses (13 of 70, 19%) in patients with residual abnormalities following treatment than in those where the mediastinum was considered normal (four of 40, 10%). Measurable abnormality was associated with a higher relapse rate (six of 25, 24%) than minimal abnormality (seven of 45, 16%), but none of these differe...