Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Trauma board and other overlying material limits evaluation of fine bony detail . The lungs are low in volume but otherwise clear without focal consolidation , pleural effusion or pneumothorax . The heart is normal in size , normal cardiomediastinal silhouette . No definite fractures are seen .
    OUTPUT:
    
No acute intrathoracic process .