Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Blunting of the right costophrenic angle is new since the prior study , suggesting small right pleural effusion with overlying right base atelectasis . Additional basilar opacity could be due to atelectasis although consolidation due to infection or aspiration is not excluded in the appropriate clinical setting . There is persistent enlargement of the cardiac silhouette . Mediastinal contours are grossly stable . No overt pulmonary edema is seen .
    OUTPUT:
    
Small right pleural effusion , new since prior study . Basilar opacity may be due to atelectasis , however , underlying infection / pneumonia is not excluded in the appropriate clinical setting .