Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . The heart is mildly enlarged . There is no pleural effusion , pulmonary edema , pneumothorax , or focal consolidation worrisome for pneumonia . Multilevel degenerative changes are present in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .