ABSTRACT
Indocyanine green (ICG) lymphography allows clear visualization of superficial lymph flows in real time without radiation exposure. Since the maximum depth that ICG lymphography can visualize is 1.5–2 cm from the skin surface, ICG lymphography cannot directly visualize deep lymph flows. As thorough systemic lymph flow evaluation is critical in primary lymphedema management, ICG lymphography should be used as a complement to lymphoscintigraphy (LSG); ICG lymphography does not replace the role of LSG. ICG lymphography is useful especially for early diagnosis of lymphedema in a small region such as the genitalia, and for navigation for lymphatic surgeries.
