Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large hiatal hernia with air - fluid level seen . Mild left base atelectasis is seen . No focal consolidation is identified . No pleural effusion or pneumothorax is seen . The cardiac silhouette is top - normal to mildly enlarged . Mediastinal contours are unremarkable . No pulmonary edema is seen . Some degenerative changes are partially imaged at the right shoulder .
    OUTPUT:
    
Large hiatal hernia . Mild left base atelectasis without focal consolidation . No pulmonary edema .