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Lymphatic duct catheterization. (A) Preparation for access of the lymphatic duct: tourniquet suture (white arrowhead), retention knot (arrow), lymphatic vessel (black arrowhead). (B) Access of the lymphatic duct with 30-gauge lymphangiography needle (black arrow). The needle initially placed through the skin for stabilization. Retention knot is then tied around the needle (black arrowhead).
