Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate clear lungs bilaterally . Lungs appear well inflated symmetrically . Cardiomediastinal and hilar contours are within normal limits . There is no pleural effusion or pneumothorax identified . No acute osseous abnormality is identified .
    OUTPUT:
    
No acute intrathoracic abnormality .