Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and show an opacity inferior to the right main stem bronchus . The cardiomediastinal silhouette , hilar contours and pleural surfaces are normal . No pleural effusion or pneumothorax is present . The previously reported right lower lobe abnormality is not visualized on the current examination and it was noted to have been resolved by report of a CT chest performed with contrast on ___ at ___ .
    OUTPUT:
    
No acute intrathoracic process . An opacity inferior to the right mainstem bronchus could represent resolving changes secondary to superior segmental abnormality , however direct comparison with the chest CT from Atrius is recommended . These findings were communicated to ___ ___ MD via telephone at 11 am on ___ .