Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable upright chest radiograph was obtained . In additon to bibasilar atelectasis , a right lower lobe opacity may represent additonal consolidation or aspiration . There is no effusion or pneumothorax . Cardiac and mediastinal contours are normal . The endotracheal tube is 2 .4 cm above the carina .
    OUTPUT:
    
1 . Slight low position of endotracheal tube . 2 . Right lower lobe opacity may represent some combination of atelectasis , consolidation , and / or aspiration .