Interval post-operative changes with endotracheal tube tip in the mid-trachea, nasogastric tube tip and side-port below the diaphragm, pneumomediastinum, and chest tubes in situ. Swan-Ganz catheter with its tip in the right ventricular outflow tract. Right internal jugular central venous line tip is in the distal superior vena cava. Sternotomy wires are intact.
Pneumomediastinum (Present)