Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to chest radiographs obtained ___ year prior , no significant changes are appreciated . Lungs are fully expanded and clear . Heart size is normal . Cardiomediastinal and hilar silhouettes and pleural surfaces are normal . There is no evidence of intrathoracic malignancy .
    OUTPUT:
    
No radiographic evidence of intrathoracic metastatic disease or other significant cardiopulmonary abnormalities .