Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well inflated and clear bilaterally with no masses or lesions . No identified adenopathy . There is no pleural effusion or pneumothorax . Cardiomediastinal silhouette is stable with mild left ventricular configuration . There is mild tortuosity and widening of the thoracic aorta . Pleural surfaces and osseous structures are unremarkable .
    OUTPUT:
    
No evidence of infection , adenopathy or metastasis .