Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . No pulmonary edema . No pleural effusions . Mild cardiomegaly with aortic knuckle prominence and calcification . Left upper chest wall pacemaker and into pacer wires are intact . There is no pneumothorax . EKG leads overlie the upper abdomen . Multilevel degenerative changes of the thoracic spine noted .
    OUTPUT:
    
Well inflated clear lungs . No pneumothorax or pleural effusions .