Fig. 1From: Contrast-enhanced ultrasound: a new tool for imaging the superficial lymphatic vessels of the upper limba Injection site in the distal antebrachium and intradermal injection technique. A small blister-like spot beneath the skin in addition to resistance to injection are probable indicators of a successful injection. Contrast agent (Sonazoid®, white arrows) can be seen in the superficial lymphatic vessel in bBack to article page