Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral radiographs of the chest . There has been interval increase of the lung volumes . Resolution of the right basilar opacity , which was likely vascular crowding from low lung volumes . There is opacification at the left base , which may represent atelectasis , however , in the appropriate clinical setting , this could represent pneumonia . No other focal areas of opacification are noted . The heart , mediastinum , and hilar contours are normal . No pleural abnormalities are detected .
    OUTPUT:
    
1 . Overall improvement in lung volumes with resolution of right basilar opacity . 2 . Left basilar opacity , which may be atelectasis or pneumonia , in the appropriate clinical setting .