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 appear within normal limits . There is no pleural effusion or pneumothorax . Visualized osseous structures appear without an acute abnormality . Compression deformities of upper thoracic vertebral body levels are unchanged . No air under the right hemidiaphragm is noted . Tortuosity of the aorta is stable .
    OUTPUT:
    
No acute intrathoracic abnormality .