Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation or edema . Mild cephalization of the vessels is noted , and unchanged . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . Mild degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .