Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next preceding similar study of ___ . Previously described findings remain unchanged . They include the area of suprahilar density to which a fiducial marker is attached . No pneumothorax has developed . The pleural densities obliterating the right lateral and posterior pleural sinus remain unchanged . No new pulmonary abnormalities are identified .
    OUTPUT:
    
Stable chest findings , no evidence of increasing pleural effusion . Most likely pleural densities represent remaining scar formations .