Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are small bilateral pleural effusions . The cardiac silhouette remains mildly enlarged . Mediastinal contours are stable . Left basilar retrocardiac patchy opacity may be due to atelectasis however , consolidation due to infection or aspiration is not entirely excluded . There is no pneumothorax . There has been interval decrease in right basilar opacity and pulmonary edema since the prior study .
    OUTPUT:
    
Small bilateral pleural effusions . Patchy left base retrocardiac opacity may be due to atelectasis , however consolidation due to infection or aspiration is not excluded . Significant interval decrease in right basilar opacity and in previously seen pulmonary edema .