Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right rib fractures best appreciated on CT are not well visualized on this plain film . Considering the change in the patient 's position on prior ( from supine to now upright ) , the pleural effusion ( better characterized on prior CT ) has not increased in size . No pneumothorax is seen .
    OUTPUT:
    
No change in right moderate sized pleural effusion ( hemothorax on CT )