Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates mild right basilar atelectasis . The left lung is clear . Cardiomediastinal and hilar contours are unchanged . Endotracheal tube is 6 cm above the carina . Right large bore central venous line is in the distal SVC . Left IJ central venous line ends at the origin of the SVC . No pneumothorax or pleural effusion .
    OUTPUT:
    
Mild right basilar atelectasis . No pneumonia .