Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates low lung volumes . Cardiomediastinal and hilar contours are stable allowing for lower lung volumes . Streaky opacity at the right lung base reflects atelectasis . Opacity within the right medial lower lung zone may be atelectatic in etiology though infectious process is difficult to exclude . Bronchovascular crowding is noted . There is no evidence of over pulmonary edema or pneumothorax . No large pleural effusion . Blunting of the right costophrenic angle may reflect trace pleural effusion .
    OUTPUT:
    
Low lung volumes with associated bronchovascular crowding and atelectasis . A equivocal opacity within the right medial lower lung zone for which infectious process can not be entirely excluded .