Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: All lines and tubes are appropriate and unchanged in positioning . There is increasing right middle and lower lobe opacification , which likely represents aspiration or pneumonia . The pulmonary vasculature is normal . The cardiomediastinal silhouette is stable . There are no large pleural effusions
    OUTPUT:
    
1 . Appropriate positioning of all lines and tubes . 2 . Increasing right middle and lower lobe opacification , concerning for aspiration or pneumonia .