Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The lungs are clear and well inflated . There is air below the right hemidiaphragm which is of unclear etiology and may reside within interposed bowel loops adjacent to the liver though the possibility of free air is also a concern . Correlation with left lateral decubitus views or CT recommended . Cardiomediastinal silhouette is normal . No pleural effusion or pneumothorax . Old right rib deformities are again noted .
    OUTPUT:
    
Question or free air below the right hemidiaphragm . If clinical concern for free air is low , left lateral decubitus views may be helpful to confirm . Otherwise abdominopelvic CT recommended to further assess .