Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate well - expanded and clear lungs bilaterally . There is no pneumothorax , pleural effusion , or consolidation . Cardiomediastinal and hilar contours are within normal limits . No acute osseous structure abnormality is identified .
    OUTPUT:
    
No acute intrathoracic abnormality .