Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , resulting in bronchovascular crowding . Linear bibasilar opacities are consistent with scarring . Cardiomediastinal and hilar contours are unremarkable . No pneumothorax , pleural effusion , or consolidation . Unchanged appearance of old fracture of the midshaft of the left clavicle . Stable mild anterior wedge compression deformity of a lower thoracic vertebral body .
    OUTPUT:
    
No acute cardiopulmonary process .