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 similar study of ___ . The heart size remains unchanged and is within normal limits . Also unchanged appearance of mildly widened and elongated thoracic aorta . No pulmonary vascular congestion is present . Mildly elevated right - sided diaphragm is unchanged and there appears a mild blunting of the right lateral pleural sinus . This very mild thickening of the lateral pleural space along the right lateral chest wall reaches up to the minor fissure which also appears to be mildly thickened . The finding is completely unchanged in comparison with the previous study . The same holds for the appearance of the right - sided posterior pleural sinus as seen on the lateral view . Again , these findings are completely unaltered . Comparison is also extended to chest PA and lateral view of ___ where bilateral mild blunting of the pleural sinuses was identified . The left - sided pleural findings had normalized on ___ . Present unchanged appearance of some pleural residuals suggests the possibility of scar formations . No new acute abnormalities are seen . The chest CT examination of ___ is also reviewed . It demonstrated absence of any pulmonary embolism but small pleural effusions on the left side and minimal pleural effusion on the right .
    OUTPUT:
    
Stable appearance of pleural residuals on the right side , most likely representing scar formations .