Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right IJ Swan - Ganz catheter with tip overlying the right pulmonary artery -- as indicated in the wet reading , this is known to the covering team . Left chest cardiac device with leads projecting over the right atrium and ventricle ; additional leads overlie the superior border of the left heart , unchanged compared with ___ . There is marked cardiomegaly , unchanged . Also again seen is prominence of the main and ? right pulmonary arteries . There is upper zone redistribution and diffuse vascular plethora and vascular blurring , consistent with CHF . This is increased compared with the prior film . There is bibasilar atelectasis . There is increased retrocardiac density consistent with left lower lobe collapse and / or consolidation , with obscuration of the left heart border . Allowing for this , no gross effusion is identified . No pneumothorax is detected . Clips noted in the right upper quadrant of the abdomen .
    OUTPUT:
    
1 . Marked cardiomegaly , unchanged . 2 . Vascular plethora consistent with CHF and left lower lobe collapse and / or consolidation . 3 . Right IJ Swan - Ganz catheter tip overlying right pulmonary artery . Please see wet reading .