Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . A moderate size hiatal hernia is re - demonstrated . Pulmonary vascularity is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is visualized . There appears to be prior surgical resection of the distal right clavicle , unchanged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .