Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate well expanded and clear lungs . Mildly prominent right mediastinal contour , likely tortuous or dilated ascending aorta . This finding is exaggerated in the setting and a narrow anterior - posterior chest diameter . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No findings to suggest infection or cough .