Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . The patient is post CABG . Central vascular congestion and mild pulmonary edema have improved since the ___ examination . A small left pleural effusion remains stable . A right pleural effusion appears resolved . The heart is mildly enlarged .
    OUTPUT:
    
1 . Improved mild central pulmonary vascular congestion and pulmonary edema . 2 . Resolved right pleural effusion . 3 . Unchanged small left pleural effusion .