Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left apical pleural and parenchymal scarriapptave been more fully characterize by serial CT scans most recently in ___ . This is most likely the sequela of previous radiation therapy in the setting of previous left mastectomy and axillary lymph node dissection . Associated left upper lobe volume loss is also demonstrated . Right lung and pleural surfaces are clear . Cardiomediastinal contours are normal . Left hilum remains elevated as well as the left hemidiaphragm . There are no pleural effusions or acute skeletal findings .
    OUTPUT:
    
Post-radiation changes in the left apex as described . No findings to suggest active pulmonary infection .