Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal with mild unfolding of the thoracic aortic arch . Lung volumes are low accentuating pulmonary vasculature . Hilar contours are normal . Trace right greater than left pleural effusion . Lungs are otherwise clear . No pneumothorax .
    OUTPUT:
    
Trace right greater than left pleural effusions . Otherwise unremarkable study .