Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low with bronchovascular crowding . Otherwise , no focal consolidation , edema , effusion , or pneumothorax . A vertically - oriented opacity just to the left of the vertebral column and above the left hemidiaphragm is rib cartilage calcification on the CT . The heart is normal in size . The mediastinum is not widened .
    OUTPUT:
    
Low lung volumes with bronchovascular crowding . No focal pneumonia .