Fig. 2From: Analysis of anatomical variations of intrapelvic vessels for advanced pelvic surgeryVariations in inter-relationships between the spinal nerves and the superior gluteal artery and vein. (Upper panel) Patterns of the superior gluteal artery (SGA). (Lower panel) Patterns of the superior gluteal vein (SGV). IIA, internal iliac artery IIV, internal iliac vein; L5, 5th lumbar nerve; S1, 1st sacral nerve; S2, 2nd sacral nerveBack to article page