Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ . Linear opacity at the right lung base is most suggestive of atelectasis . Lungs are clear of confluent consolidation or pulmonary vascular congestion . Cardiomediastinal silhouette is within normal limits . Previously identified left PICC is no longer seen . Stents identified in the right upper quadrant may be biliary in location and as seen on prior . Osseous structures are unremarkable .
    OUTPUT:
    
Right basilar opacity most suggestive of atelectasis , noting that infection can not be excluded . Please correlate clinically .