Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest . Postsurgical changes are seen in the right upper hemithorax which are grossly stable but there is possible slight increase in opacification in the right upper upper hemithorax since the prior study . Volume loss related to the prior lobectomy is noted with elevation of the right hemidiaphragm and the right hilus . The left lung is clear . No pleural effusion or pneumothorax . Normal heart size .
    OUTPUT:
    
Postsurgical changes in the right upper hemithorax with possible slight increase in opacity since the prior study . Can not exclude superimposed infection . Notification : Telephone notification to Dr . ___ by Dr . ___ at 22 :40 on ___