Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since radiographs obtained ___ , no significant changes are appreciated . There is persistent , minimal elevation of the left hemidiaphragm and tortuosity of the aorta . The lungs are fully expanded and clear without focal consolidation or evidence of pulmonary nodules or masses . Cardiomediastinal and hilar silhouettes are normal . The pleural surfaces are normal .
    OUTPUT:
    
No radiographic evidence of significant cardiopulmonary abnormality .