Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Trace pleural effusion in the right costophrenic sulcus vs suboptimal inspiration . No focal consolidation or pneumothorax is seen .
    OUTPUT:
    
Small opacification in the right lung may represent trace pleural effusion or it may potentially be due to suboptimal inspiration . If clinically warranted , examination may be repeated with emphasis on inspiration .