Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . A moderate size hiatal hernia is present . Mediastinal and hilar contours are otherwise unremarkable . Lungs are clear . Pulmonary vasculature is normal . No pleural effusion or pneumothorax is present . No acute osseous abnormality is detected .
    OUTPUT:
    
Moderate size hiatal hernia . Otherwise no acute cardiopulmonary abnormality .