Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Low lung volumes limit assesment . There is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen . Pacing leads are unchanged in position .
    OUTPUT:
    
Low lung volumes . No definite pneumonia . If clinical suspicion persists , repeat radiograph with improved inspiratory level may be considered .