Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were compared to previous exam from ___ . When compared to prior , there has been no significant interval change . Again seen is a right lung base opacity localizing to the lower lobe on the lateral exam . Elsewhere , the lungs remain clear . Pleural thickening versus prominent extrapleural fat seen laterally on the right as well as regions of calcified pleura . There is no pleural effusion . Cardiac silhouette is enlarged but stable . Dual - lead pacing device again noted as well as postoperative changes from median sternotomy . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Persistent right basilar opacity , for which clinical correlation is recommended regarding possibility of infection versus atelectasis .