Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest are somewhat technically limited , especially the lateral view . The lungs are clear and aside from aortic tortuosity , the hilar and cardiomediastinal contours are normal . There is no pneumothorax or pleural effusion , and the pulmonary vascularity is normal , without edema . Median sternotomy cerclage wires are intact .
    OUTPUT:
    
No evidence of pneumonia .