Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest provided . In comparison to prior study from 4 days ago , there is significant improvement in pulmonary edema . Slight residual right basilar opacity is seen , likely sequela from pulmonary edema . Cardiac silhouette is stably enlarged . Pacemaker device is seen with leads terminating in the right atrium and right ventricle . Median sternotomy wires are intact . There is no large pleural effusion .
    OUTPUT:
    
Interval improvement in pulmonary edema .