Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate right pleural effusion appears increased since the prior study . Right base opacity is likely due to pleural effusion and atelectasis although underlying consolidation is not excluded . There may be minimal pulmonary vascular congestion . No pneumothorax is seen . There is minor biapical pleural thickening . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Right pleural effusion , which appears mildly increased compared to the prior study . Right basilar opacity likely represents combination of pleural effusion and atelectasis although underlying consolidation is not excluded . Possible minimal pulmonary vascular congestion .