Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Lung volumes are somewhat low , though allowing for this , there is no focal consolidation , effusion or pneumothorax . There is probable mild atelectasis in the lower lungs . The cardiomediastinal silhouette appears normal . The bony structures appear intact . No definite signs of free air below the right hemidiaphragm .
    OUTPUT:
    
No acute findings . Low lung volumes limits evaluation .