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 ___ . Moderate elevation of right - sided hemidiaphragm as before . Two chest tubes entered from the lower lateral chest wall terminate in unchanged position , draining the area of the previous empyema . The lowermost of the two tubes is in unchanged position , whereas the higher ending tube has been withdrawn by a few centimeters , but still remains in place . The size of the pleural density that forms a triangular thickening of the right lateral and posterior pleural space has decreased slightly in comparison with the next previous study . There is no evidence of any new cavitation , loculated pneumothorax or other new parenchymal abnormalities . The left - sided hemithorax remains completely unchanged and within normal limits .
    OUTPUT:
    
Mild regression of pleural thickenings , no new abnormalities , no pneumothorax .