Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is somewhat rotated on today 's study . Lung volumes are unchanged . The cardiomediastinal contour is within normal limits . The previously demonstrated patchy retrocardiac opacities are not as clearly seen today . No consolidation , pneumothorax in . Degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process seen . No significant interval change when compared to the prior study .