Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs demonstrate clear lungs bilaterally . Lungs are slightly hyperinflated . Cardiomediastinal and hilar contours are within normal limits . There is no pleural effusion , pneumothorax , or evidence of pulmonary edema . There is no air under the diaphragm .
    OUTPUT:
    
No evidence of pneumonia .