Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is continued right lung volume loss with right perihilar scarring and distortion , similar to ___ and probably due to prior infection . The cardiac mediastinal silhouette is unchanged , and the lungs are clear of focal consolidation , pleural effusions or pneumothoraces .
    OUTPUT:
    
No acute cardiopulmonary process .