Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tube overlying the upper mediastinum raises the question of interval placement of a tracheostomy tube . Linear density over the mediastinum in the midline likely represents an NG tube . On today 's study , due to underpenetration , this is traced only to the level of the diaphragm . It may very well course beyond that , but be obscured by underpenetration . A left subclavian central line and right subclavian PICC line are again noted . The tips are not well delineated in a partially obscured by the overlying right pleural drain , but both appear to lie in the region of the SVC / RA junction . No pneumothorax is detected . Again seen are low inspiratory volumes , stable prominence the cardiomediastinal silhouette , CHF , moderate bilateral pleural effusions each with underlying collapse and / or consolidation , all similar to the prior study . Again seen is tubing in the region the right hilum , apparently a right - sided drain .
    OUTPUT:
    
Question interval placement of tracheostomy tube . Otherwise , overall similar to the prior study . Please note that on today 's exam , likely due to underpenetration , the NG tube can not be traced beyond the level of the diaphragm .