Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiograph demonstrates clear lungs bilaterally . Cardiomediastinal and hilar contours are within normal limits . No evidence of pulmonary edema . There is no pneumothorax or pleural effusion . Osseous structures demonstrates no acute abnormality .
    OUTPUT:
    
No acute intrathoracic abnormality .