Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is s / p right mastectomy . The lungs are well expanded . There is stable right apical scarring with associated ipsilateral hilar traction and diaphragmatic tenting , suggesting loss post - treatment changes with volume loss . There are no focal opacities . The cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Surgical clips are noted in the right axilla from prior lymph node resection .
    OUTPUT:
    
No significant interval change . No acute cardiopulmonary process .