Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent mild elevation of the right hemidiaphragm . Patchy lingular opacity appears somewhat linear on lateral view and most likely is due to atelectasis although consolidation due to pneumonia is not excluded in the appropriate clinical setting . No pleural effusion or pneumothorax is seen . The cardiac silhouette is top - normal .
    OUTPUT:
    
Likely lingular atelectasis , underlying pneumonia not excluded in the appropriate clinical setting . No pleural effusion .