Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Again , low lung volumes are seen with relative elevation of the right hemidiaphragm which is unchanged . The lungs are clear without effusion , pulmonary vascular congestion or pneumothorax . Again seen are surgical clips in the right paramediastinal region . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormality is detected . No free air is seen below the diaphragm .
    OUTPUT:
    
No acute cardiopulmonary process .