Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates hyperexpanded lungs . There is new opacification of the right base which likely represents atelectasis or aspiration . There is a small right - sided pleural effusion . The left lung demonstrates increased retrocardiac opacity , also likely consistent with aspiration or atelectasis . The endotracheal tube ends 4 .3 cm from the carina . The nasogastric tube courses into the stomach and at the field of view . There is no pneumothorax . The cardiomediastinal hilar contours are unchanged .
    OUTPUT:
    
Increased opacification of the bilateral bases likely represents atelectasis or aspiration . Small right - sided pleural effusion .