Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are provided . Lung volumes are somewhat low . There is no focal consolidation , effusion , or signs of pneumothorax . The heart and mediastinal contour appears normal . Focal eventration of the right hemidiaphragm is incidentally noted . The bony structures appear intact . No displaced rib fractures are identified . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute abnormality .