Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube is in place , approximately 6 .6 cm from the carina . A feeding tube is seen with the tip and side port within the stomach . There is a subtle 1 mm new soft tissue contour adjacent to the calcification of the aortic knob which was not present on the prior radiograph , and is likely due to patient positioning . Otherwise , the cardiomediastinal silhouette is normal . New mild hazy opacity at the left base is present , which likely represents atelectasis . There is no pneumothorax , pleural effusion , or consolidation .
    OUTPUT:
    
1 . New left basilar atelectasis . 2 . Increased size of mediastinal contour adjacent to the aortic arch is likely due to patient positioning .