Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided 2 lead pacemaker is present , with lead tips over the right atrium and right ventricle . A right IJ Swan - Ganz catheter is present , with tip distal , over lying an inferior branch of right pulmonary artery . Clinical correlation regarding retraction is requested . There is a right - sided PICC line . The tip is not well delineated , but is likely unchanged , lying at the level of the cavoatrial junction . No pneumothorax is detected . The cardiomediastinal silhouette is enlarged , similar to the prior study . Again seen is borderline upper zone redistribution , but doubt overt CHF . Minimal hazy opacity in the right cardiophrenic region is similar to prior . There may be minimal left lower lobe atelectasis , but no dense retrocardiac density . No other focal opacities are identified . No gross effusion . Again noted are multiple somewhat coiled wire like sutures overlying the right lateral lower chest and upper abdomen .
    OUTPUT:
    
Cardiomegaly , unchanged . No overt CHF . Minimal bibasilar atelectasis again noted . Swan - Ganz catheter tip is relatively distal , superimposed over lower right pulmonary artery . Clinical correlation regarding possible retraction is requested .