Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Significantly lower lung volumes are seen on the current exam . There is relative elevation of the right hemidiaphragm . Right basilar opacity is suggestive of atelectasis not definitely changed from prior . There is no effusion . The cardiomediastinal silhouette is moderately enlarged . Azygos lobe and fissure again noted . Stent is identified in the upper abdomen .
    OUTPUT:
    
Lower lung volumes with right basilar atelectasis . Infection can not be completely excluded .