Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are decreased lung volumes . The right IJ terminates at the cavoatrial junction . There is increased opacity in the right lung base and to a lesser extent the left lung base , which may represent atelectasis but can not exclude pneumonia or aspiration in the right clinical setting . Vascular congestion is seen without overt pulmonary edema . There is no pleural effusion or pneumothorax . Free air is again noted noted under the diaphragm , decreased from prior exam and consistent with recent surgery . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
1 . Opacity in the right lung base and to a lesser extent the left lung base , which may represent atelectasis but can not exclude pneumonia or aspiration in the right clinical setting . 2 . Free air under the diaphragm , decreased from prior exam .