Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well expanded and clear bilaterally with no evidence of focal consolidation , mass lesions or pleural effusion . There is no pneumothorax . The aorta is slightly tortuous ; otherwise , the cardiomediastinal silhouette is within normal limits . The pleural surfaces are unremarkable .
    OUTPUT:
    
No evidence of metastatic disease .