Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , which does result in crowding of the bronchovascular structures . Streaky opacity seen at the left lung base is unchanged , likely representing scarring . There is no pleural effusion or pneumothorax . The cardiac and mediastinal contours are unchanged . Air-filled , nondilated loops of bowel are seen in the abdomen . Cholecystectomy clips are present .
    OUTPUT:
    
Low lung volumes without an acute cardiopulmonary process .