Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to prior chest CT from ___ . Low lung volumes are seen . The lungs , however , are clear of consolidation or effusion . There is the suggestion of a small hiatal hernia based on the frontal exam , similar in configuration compared to prior given rightward deviation of the right paraspinal line . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
No definite acute cardiopulmonary process . No free air below the diaphragm .