Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal supine view of the chest was obtained portably . The endotracheal tube ends in the mid trachea , 3 .0 cm above the carina . A nasogastric tube tip ends in the gastric fundus . Lung volumes are very low resulting in bronchovascular crowding . There is mild left basilar atelectasis . No large pneumothorax or effusion . Widening of the mediastinal silhouette is probably due to patient position and technique .
    OUTPUT:
    
1 . Endotracheal tube ends 3 cm above the carina . 2 . Widened mediastinum , may relate to AP , supine technique . Given body habitus , mediastinal lipomatosis may also contribute . If there is clinical concern for mediastinal pathology , further evaluation can be performed with upright conventional radiographs or cross - sectional imaging .