Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Relatively low lung volumes are seen with secondary crowding of the bronchovascular markings . There is no large confluent consolidation . No effusion . Single lead left chest wall pacing device is seen . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
No definite acute cardiopulmonary process .