Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Residual small right pleural effusion status - post thoracentesis . Associated focal right lower and right middle lobe opacity that is most consistent with residual atelectasis and re-expansion pulmonary edema post - thoracentesis , less likely aspiration or developing infection . Stable small left pleural effusion with adjacent left retrocardiac opacity with air bronchograms . The left lung is otherwise clear . No pneumothorax . Stable cardiomediastinal silhouette .
    OUTPUT:
    
1 . Marked decrease in size of right pleural effusion with residual small right pleural effusion after recent thoracentesis . 2 . Right middle and right lower lobe airspace opacities may reflect re-expansion edema following recent large volume thoracentesis , but short - term followup radiographs would be helpful to exclude other potential etiologies such as infectious pneumonia . At that time , additional airspace opacity at the left base may also be reassessed . 3 . Stable small left pleural effusion .