Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small right pleural effusion is with likely overlying right base atelectasis . Right base opacity most likely due to atelectasis although small area of consolidation is difficult to exclude . The left lung is clear . There is no left pleural effusion . No pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . No pneumomediastinum is seen or evidence of free air beneath the diaphragms .
    OUTPUT:
    
Small right pleural effusion with overlying atelectasis . Right base opacity likely represents combination of pleural effusion and atelectasis , although subtle consolidation is difficult to exclude . No pneumomediastinum or evidence of free air beneath the diaphragms .