Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest shows ET tube whose tip is 6 .4 cm above the carina . An OG tube tip courses through the esophagus and terminates out of view . A right subclavian catheter is present , whose tip is in the high SVC . Compared to the prior film , there is improving mild pulmonary edema as well as improvement in the right basilar consolidation . There is an unchanged retrocardiac opacity . The cardiac silhouette is enlarged but stable . There is no pneumothorax .
    OUTPUT:
    
Improvement in the mild pulmonary edema and right basilar opacity with a persistent retrocardiac opacity .