Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest . Previously identified pneumothorax is miniscule if seen at all . Again seen is a large hiatal hernia within the left hemithorax . No evidence of pulmonary edema . Tiny right pleural effusion . No focal consolidation . Heart size is normal . There are aortic knob calcifications . The previously seen posterior rib fractures on recent CT are not well seen .
    OUTPUT:
    
Previously seen tiny right - sided pneumothorax is miniscule if seen at all . Tiny right pleural effusion .