Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rotated to the left . The endotracheal tube sits just below the clavicular heads ; the carina is not well seen , and while chest radiography is not ideal to assess for such , the trachea distal to the ET tube appears narrowed . The endogastric tube side port is well below the GE junction . The left - sided central line tip in the mid SVC . The heart size is within normal limits . Mediastinal contours again demonstrate calcified atherosclerotic disease at the aortic knob and a large mass approximately 8 .5 x 6 cm in the coronal plane dominating the right upper mediastinum ( better characterized on prior CT ) . Right middle lobe atelectasis is new . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Lines and tubes as described above . 2 . Stable right upper mediastinal mass . 3 . Right middle lobe atelectasis . 4 . Question of narrowed trachea beyond the ET tube - CT may be considered is clinical concern for poor aeration exists .