Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine AP view of the chest is obtained . The lungs are clear bilaterally . No focal consolidation or supine evidence for effusion or pneumothorax . Cardiomediastinal silhouette is normal . No bony abnormalities are seen . Known T11 fracture can not be assessed .
    OUTPUT:
    
No acute intrathoracic process .