Technique of retrograde removal of liver. A, Incisions. AA, Subcostal incision used for all orthotopic liver transplantations. BB, CC and DD, Frequently used extensions from the AA incision. B. Beginning retrograde removal after transection of inferior vena cava and hilar structures. All posterior tissue that is cut should be ligated, although the named vessels encountered, such as the right adrenal vein, are few in number.