Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip terminates approximately 4 .5 cm from the carina . An enteric tube courses below the left diaphragm , with tip off the inferior borders of the film . The patient is status post median sternotomy , CABG , and prostatic valve replacement . Heart size is mildly enlarged . The aorta is tortuous . Lung volumes are low with crowding of the bronchovascular structures and probable mild pulmonary vascular engorgement . Patchy opacities in the lung bases may reflect areas of atelectasis . No large pleural effusion or pneumothorax is present . There is elevation of the right hemidiaphragm of unknown chronicity .
    OUTPUT:
    
1 . Endotracheal and enteric tubes in standard positions . 2 . Low lung volumes with mild pulmonary vascular congestion and probable bibasilar atelectasis .