Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs volumes are chronically low . Recurrent atelectasis in the right middle and left lower lobes is due to eventration of the ipsilateral hemidiaphragms . The cardiomediastinal silhouette and hilar contours are normal . No pleural effusion or pneumothorax is present . A left nephrostomy catheter is partially imaged .
    OUTPUT:
    
No pneumonia . Diaphragm eventration responsible for bilateral atelectasis .