Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright frontal chest radiograph demonstrates progressive increase in a large left and smaller right pleural effusion with associated bibasilar atelectasis . There is no pneumothorax . The cardiac silhouette remains markedly enlarged , the mediastinum remains widened , unchanged . Intact median sternotomy closure wires are again seen . Pulmonary vasculature is normal without pulmonary edema .
    OUTPUT:
    
1 . Large left and smaller right pleural effusions with bibasilar atelectasis , progressing from ___ . 2 . Unchanged moderate cardiomegaly and mediastinal enlargement , with normal pulmonary vasculature , probably reflecting mediastinal fluid accumulation .