Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains mildly enlarged . Moderate size hiatal hernia is re - demonstrated . The hilar contours are stable . Lungs are clear . No pleural effusion or pneumothorax is present . The pulmonary vasculature is normal . Several clips are seen projecting over the left chest . No acute osseous abnormalities demonstrated . Degenerative changes are noted at the thoracolumbar junction .
    OUTPUT:
    
No acute cardiopulmonary process .