Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right pigtail catheter is unchanged . The remnant effusion is stable . Again noted is mild pulmonary edema , although improved since the previous exam especially in the right lung . Opacity in the left mid lung may represent asymmetric edema , however this seems less likely given the improvement in edema in the right lung . The cardiac silhouette is unchanged . Median sternotomy wires are intact .
    OUTPUT:
    
1 . No change in right pleural effusion . 2 . Opacity in the right midlung concerning for infection given the improvement in pulmonary edema .