Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a new moderate - to - large right - sided pleural effusion with volume loss suggesting extensive coinciding parenchymal atelectasis , substantially increased since the prior studies . There is a persistent patchy left basilar opacity , but with general improvement in aeration of the left lower lobe and resolution of a small left - sided pleural effusion . There is no pneumothorax . A mild interstitial abnormality in each lung suggests mild fluid overload . Post-operative changes are noted along the right chest wall including rib deformities , as seen previously .
    OUTPUT:
    
Substantial increase in right - sided pleural effusion with volume loss .