Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Complete opacity of the left hemithorax is in this patient status post left pneumonectomy with post-surgical changes along the left chest wall , similar to prior . There is associated significant volume loss . There may be mild pulmonary vascular congestion of the right lung , improved since the prior with underlying pulmonary emphysema . No focal consolidation is seen . The cardiac silhouette is not assessed due to its shift into the left hemithorax and overlying left hemithorax opacity .
    OUTPUT:
    
Status post left pneumonectomy with stable post - surgical changes . Possible mild pulmonary vascular congestion , which is improved since the prior study , with underlying pulmonary emphysema . No focal consolidation .