Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is borderline enlarged . The aorta is unfolded . A large mass is seen in the right lower lung field , and projects posteriorly on the lateral view . Surgical clips are seen in the upper mediastinum . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Large right lower lobe mass .