Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest demonstrate clear lungs and normal heart and mediastinal contours . The aorta is mildly tortuous , a stable finding from prior studies . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal . Minimal anterior wedging of several thoracic vertebral are also stable . A coronary arterial stent is noted .
    OUTPUT:
    
No evidence of acute cardiopulmonary process or mediastinal widening .