Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low , similar to the prior exam and resultant bronchovascular crowding . No focal consolidation , edema , effusion , or pneumothorax . The cardiomediastinal silhouette is unremarkable . The hila are unremarkable . Heart size is normal . No evidence of acute osseous abnormality . Surgical clips in the right upper quadrant likely correspond to history of " cholecystectomy .
    OUTPUT:
    
Low lung volumes resulting in bronchovascular crowding . No pneumonia .