Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is slightly decreased conspicuity of a small opacity at the right lateral lung base as compared with the prior exam performed on ___ . There may be a small right pleural effusion . Again seen are bibasilar bronchiectatic changes and slight elevation of the left hemidiaphragm . Lungs appear hyperinflated . The left upper extremity PICC has been removed over the interval . The cardiomediastinal silhouette is unchanged . No pneumothorax .
    OUTPUT:
    
Persistent right basal opacity shows minimal improvement .