Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The pericardial effusion has probably decreased in size . There is a moderate left pleural effusion and basilar atelectasis . There is a rounded opacity in the right upper lobe corresponding to subpleural nodule seen on prior chest CT . There is no pneumothorax . Hilar and mediastinal contours are normal .
    OUTPUT:
    
Pericardial effusion has probably decreased in size . Moderate left pleural effusion and basilar atelectasis . Right upper lobe rounded opacity corresponding to subpleural nodule seen on previous chest CT .