Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . The lungs are clear . There is no effusion or pneumothorax . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable . No free air is seen below the diaphragm .
    OUTPUT:
    
Unremarkable chest x-ray . No free air below the diaphragm .