Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Evidence of patient 's known large hiatal hernia is seen . The cardiac and mediastinal silhouettes are stable . Hilar contours are stable . No definite new focal consolidation is seen . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Known large hiatal hernia . No focal consolidation or pulmonary edema .