Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Again , low lung volumes are seen . Blunting of the left costophrenic angle could be due to atelectasis . The lungs are clear . The cardiomediastinal silhouette is stable . No acute osseous abnormalities identified .
    OUTPUT:
    
No definite acute cardiopulmonary process .