Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Swan - Ganz catheter is noted in the left descending pulmonary artery . Given the distal positioning , the catheter should be pulled back several centimeters to position it closer to the hilum . The multiple other supportive devices are unchanged in position . There is no significant change in the appearance of the lung parenchyma . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
The tip of the Swan - Ganz catheter is positioned distally in the left descending pulmonary artery . Recommend pulling back several centimeters to position the catheter closer to the hilum . Results were discussed with ___ ( cardiothoracic surgery NP ) at 16 :44 on ___ via telephone by Dr . ___ at the time of the findings were discovered .