Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right costophrenic angle is included on the current study . There is no pleural effusion or pneumothorax . There is no focal consolidation concerning for pneumonia . The cardiomediastinal and hilar contours are stable . Multilevel degenerative changes of the spine are noted .
    OUTPUT:
    
No acute abnormality .