Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Analysis is performed in direct comparison with the next preceding AP single view chest examination of ___ . The heart size is unchanged , and the appearance of the thoracic aorta is unaltered . The pulmonary vasculature is not congested . No new acute pulmonary infiltrates can be identified . There remains a mild blunting of the right lateral pleural sinus extending into the posterior area . The left hemithorax is free and no pleural effusion is found on this side . The portable single view chest examination of ___ did not demonstrate any remaining blunting of the right lateral pleural sinus . When comparing the present study with that similar PA and lateral chest examination of ___ , however , the amount of pleural effusion is unchanged and rather small .
    OUTPUT:
    
Stable chest findings , small right - sided pleural effusion residual of unchanged magnitude .