Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable supine frontal chest radiograph again demonstrates an endotracheal tube terminating approximately 2 .2 cm from the carina . An enteric tube is unchanged in position , terminating in the stomach . Lung volumes remain low , with exaggeration of the cardiac silhouette . The right hemidiaphragm is not as well seen , likely related to atelectasis . MILD EDEMA HAS IMPROVED SINCE ___ : 11 . No obvious focal consolidation , pleural effusion , or pneumothorax is identified . There may be minimal edema in the bilateral upper lung zones .
    OUTPUT:
    
Persistently low lung volumes , with increased atelectasis in the right lower lung . IMPROVED MILD EDEMA .