Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral radiographs of the chest demonstrate clear lungs and normal hilar and cardiomediastinal contours . The aorta is in an unfolded configuration . There is dextroscoliosis of the thoracic spine . There is no pneumothorax or pleural effusion . Pulmonary vasculature is normal .
    OUTPUT:
    
No evidence of pneumonia .