Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is slight elevation of the right hemidiaphragm . The lungs and pleural spaces are grossly clear without evidence of pneumothorax . Cardiomediastinal silhouette is within normal limits . There is no evidence of pneumoperitoneum . Osseous structures are unchanged .
    OUTPUT:
    
No acute intrathoracic process .