Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes seen on the frontal view with secondary crowding of the bronchovascular markings . The lungs are clear without consolidation or effusion or pneumothorax . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities identified .
    OUTPUT:
    
No acute cardiopulmonary process .