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 ___ . Mediastinal and cardiac structures are unchanged . Thus , no evidence of cardiac enlargement . The pulmonary vasculature is not congested . Right - sided status post decortication procedure as before . Unchanged moderate degree of diaphragmatic elevation . The previously described two pleural drainage chest tubes remain in position . Comparison shows that both tubes have been withdrawn by up to 2 cm , but basically , the position is unaltered . No pneumothorax has developed . No remaining pneumothorax is seen in the apical areas .
    OUTPUT:
    
Satisfactory findings on followup examinations . Minor change in chest tube positions as expected .