Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . Lung volumes are low , resulting in crowding of bronchovascular structures . With this limitation in mind , lungs are grossly clear . There is no pleural effusion . A neurostimulator device remains in place . . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .