Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are clear without focal consolidation , pleural effusion , or pneumothorax . Cardiomediastinal silhouette and hilar contours are within normal limits . There is no pleural effusion or pneumothorax . Chronic elevation of the left hemidiaphragm is unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .