Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been no significant change since most recent prior radiograph . A chest port catheter is in stable position . Again seen is scarring and post-surgical changes at the right lung base . There is no focal consolidation , pleural effusion or pneumothorax . Cardiomediastinal silhouette is unremarkable . Osseous structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process and no significant change since prior radiograph .