Variation of the Lateral Sacral Artery in relation to Sciatic Neuropathy

Figure 5

Lateral sacral artery arising directly from the posterior trunk and indirectly from the sciatic artery (EIA: external iliac artery; IIA: internal iliac artery; AT: anterior trunk; PT: posterior trunk; UMA: umbilical artery; OA: obturator artery; ON: obturator nerve; UTA: uterine artery; IPA: internal pudendal artery; SGA: superior gluteal artery; SA: sciatic artery; LSA: lateral sacral artery).