Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tip of Swan - Ganz catheter projects in left retrocardiac region within the expected distal segmental branch of the left lower lobe pulmonary artery . Dr . ___ has been notified of this finding by telephone at 8 : 15 a .m . on ___ at the time of discovery . Tip of the endotracheal tube is in standard position terminating about 5 cm above the carina . Cardiac silhouette is enlarged and accompanied by pulmonary vascular engorgement and asymmetrical perihilar edema , worse on the right than the left . A more confluent opacity in the right lower lobe could reflect dependent pulmonary edema or a secondary process such as infection . Moderate layering right pleural effusion is also noted . Finally , widening of the mediastinum is present above the level of the aortic arch . Although possibly due to venous distention in the setting of congestive heart failure , the possibility of lymphadenopathy or mass is not excluded in the absence of older radiographs for comparison . With this in mind , careful followup radiographs are recommended following appropriate treatment for congestive heart failure prior to discharge . This finding was also communicated to Dr . ___ at the time of the above communication .
    OUTPUT:
    
1 . Distal position of Swan - Ganz catheter . Please see documentation of communication above . 2 . Probable asymmetrical pulmonary edema but follow up radiographs would be helpful to exclude a secondary superimposed process in the right lower lobe . At that time , the mediastinal width may also be reassessed .