Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are unchanged with the heart size within normal limits . Moderate size hiatal hernia is re - demonstrated . Lungs are clear . Pulmonary vasculature normal . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Moderate size hiatal hernia . No acute cardiopulmonary process otherwise seen .