Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate clear lungs bilaterally . Cardiomediastinal and hilar contours are within normal limits . No pleural effusion or pneumothorax is detected . Osseous structures are without an acute abnormality . No air to the right hemidiaphragm is seen .
    OUTPUT:
    
No acute intrathoracic abnormality .