Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube still low lying ending approximately 1 cm above the carina and could be withdrawn a few cm for standard positioning . The cardiac silhouette is stably enlarged . Patchy bibasilar atelectasis is noted . Mediastinal contours are difficult to assess due to marked patient rotation . Accentuation of the thoracic aorta and thinned enlarged main pulmonary artery likely accounts for the widened appearance of the left mediastinum and hilum . Linear bibasilar atelectasis is noted at the lung bases .
    OUTPUT:
    
Accentuation of thoracic aorta and pulmonary artery contours by patient rotation likely accounts for the presence of left mediastinal and hilar widening . However , a nonrotated radiograph is recommended for short - term followup to confirm this impression . Low lying endotracheal tube as detailed above .