Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Elevation of the left hemidiaphragm is again noted . The lungs are clear with no evidence of edema or pneumonia . No pleural effusion or pneumothorax . Cardiomediastinal contours are normal .
    OUTPUT:
    
No acute cardiopulmonary process . Chronic elevation of the left hemidiaphragm .