Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low limiting assessment . Allowing for this , the lungs appear clear . No large effusion or pneumothorax . Cardiomediastinal silhouette is grossly unchanged though poorly assessed . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Limited , negative .