Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low resulting in mild bronchovascular crowding . Diffuse interstitial opacities may be related to chronic mild edema or underlying chronic lung disease . No superimposed confluent consolidation is identified . Elevation of the right hemidiaphragm is chronic . There is no pleural effusion . No pneumothorax is identified . Cardiomediastinal and hilar contours are unchanged from prior .
    OUTPUT:
    
No acute cardiopulmonary process