Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate stable post-radiation changes in the left upper lung . The heart is not enlarged . Prominence of the right hila corresponds to known hilar lymphadenopathy , which is stable . There is no pneumothorax , pleural effusion , or consolidation .
    OUTPUT:
    
No acute cardiopulmonary process .