Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiograph demonstrates hyperinflated lungs . Cardiomediastinal and hilar contours are within normal limits . There is no pleural effusion or pneumothorax . No evidence of pulmonary edema . Lungs are without a focal opacity worrisome for pneumonia . There is no air under the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic abnormality .