Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates complete collapse of the right upper lobe and atelectasis of the left upper lobe . The right lower lung is clear . There is right - ward shift of the mediastinum . The heart size is normal . Endotracheal tube ends 4 .3 cm from the carina . No pneumothorax .
    OUTPUT:
    
Complete collapse of the right upper lobe of the lung .