Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . Lungs are well expanded and clear . There is no focal consolidation , pleural effusion or pneumothorax . No definite radio - opaque foreign body is identified .
    OUTPUT:
    
No acute cardiopulmonary process . No definite radio - opaque foreign body identified . However , if fragment is a small chip of tooth , and if there is persistent clinical concern CT is recommended for further evaluation .