Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Evaluation of the chest is limited due to underlying trauma board . Within this limitation , the lungs are clear without focal consolidation , pleural effusion or large pneumothorax on this supine view . The cardiomediastinal and hilar contours are within normal limits . The trachea is midline . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute intrathoracic process .