Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tracheostomy tube is in place at satisfactory position . The OG tube is not visualized on the radiograph . The lung volume is significantly decreased , partially due to patient position . There is obscuring of the left hemidiaphragm , consistent with left lower lobe collapse . No consolidation . No pleural effusion . No pneumothorax . The cardiac silhouette is slightly enlarged compared to prior , partially due to patient position . The mediastinum is normal . The stomach is significantly dilated . No fractures .
    OUTPUT:
    
1 . OG tube is not visualized on the chest radiograph . Tracheostomy tube is in satisfactory position without complication . 2 . Left lower lobe collapse .