Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . The diaphragms remain flattened . A right hilar opacity has increased since ___ . Cardiac contours are unchanged . Tortuosity of the thoracic aorta is unchanged .
    OUTPUT:
    
Right hilar opacity should be further evaluated with contrast - enhanced CT . Discussed with ___ via phone at ___ on ___ .