Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . The aorta is mildly tortuous with mural atherosclerotic calcifications . Hilar contours are normal . Lungs are clear . There is no pleural effusion or pneumothorax . No expansile bony lesions are identified .
    OUTPUT:
    
No evidence of intrathoracic metastatic disease .