Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a tunneled dialysis catheter with the tip terminating in the low right atrium . A left PICC has been slightly retracted with the tip now terminating at the level of the carina in the mid SVC . The patient is status post median sternotomy . The inspiratory lung volumes remain extremely low . There is increased opacification of the right lung base in comparison to the most recent prior study likely reflecting a combination of increased pleural fluid and underlying atelectasis . Left basilar atelectasis is unchanged . A small left pleural effusion is also noted with slightly increased left basilar atelectasis . No pneumothorax is detected . The cardiomediastinal silhouette is incompletely evaluated due to bibasilar opacification but is likely unchanged .
    OUTPUT:
    
1 . Left PICC minimally retracted in comparison to ___ with tip still in mid SVC . 2 . Interval placement of right HD catheter with tip in low right atrium . 3 . Increased opacification of the bilateral bases on the right greater than the left likely reflecting increased pleural effusion and underlying atelectasis .