Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . There is unchanged moderate cardiomegaly without evidence of pulmonary edema . The hilar contours are stable . There is no pleural effusion or pneumothorax . Degenerative changes of the thoracic spine with mild compression deformities are unchanged . A left chest wall pacer and leads are in unchanged positions .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Moderate cardiomegaly without overt pulmonary edema .