Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low but clear . Interstitial opacities likely reflect bronchovascular crowding due to poor inspiratory effort . There is no focal consolidation or pneumothorax . Cardiomediastinal and hilar contours are within normal limits and unchanged from prior .
    OUTPUT:
    
No acute cardiopulmonary process .