Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there is been marked contraction of intravascular volume and or pressure . There has been a decrease in pulmonary artery volume and cardiomediastinal silhouette , although there is still pulmonary vascular congestion . The previous , left dominant lower lobe opacification on radiographs on ___ , is now right side dominant , and partially improved since ___ , suggesting position - dependent edema rather than pneumonia , however rapidly resolving left basal pneumonia and subsequent right pneumonia , particularly due to recurrent aspiration , is still a possibility . There is a small left pleural effusion . There is no pneumothorax . The PA catheter ends in the right descending pulmonary artery , and should be withdrawn 2 - 3 cm to be in a more standard position . ET and NG tubes are appropriately positioned . Left pleural drain is unchanged . There has been interval removal of the intra aortic balloon pump .
    OUTPUT:
    
1 . Improvement in intravascular volume and / or pressure . 2 . Swan - Ganz catheter ending in the periphery of the right pulmonary artery should be withdrawn to 2 - 3 cm to be in a more standard position . 3 . Interval improvement , right lower lobe consolidation , and clearing of left basal consolidation , either position dependent , asymmetric edema , less likely rapidly changing pneumonia , presumably due to aspiration .