Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable AP upright chest radiograph shows persistent elevation of the right hemidiaphragm . Vascular Stent in the region of the left axilla and left upper outer chest is unchanged in position . Cardiomediastinal silhouette is within normal limits . Lungs are clear , without focal consolidation . There is no pleural effusion and no pneumothorax .
    OUTPUT:
    
No evidence of pneumonia .