Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac silhouette is not enlarged . There is a moderate to large hiatal hernia . The proximal esophagus may be dilated vs a possible azygous fissure .
    OUTPUT:
    
The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac silhouette is not enlarged . There is a moderate to large hiatal hernia . The proximal esophagus may be dilated vs a possible azygous fissure .