Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are relatively low with bronchovascular crowding . There is suspected superimposed mild pulmonary edema . There is no large pleural effusion , although blunting of the left lateral costophrenic angle could indicate small effusion . Cardiomediastinal silhouette is stable given differences in technique and positioning . No acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes with broad bronchovascular crowding with suspected superimposed mild pulmonary edema . Possible small left pleural effusion .