Variation of the Lateral Sacral Artery in relation to Sciatic Neuropathy

Figure 1

The lateral sacral artery arising from the posterior trunk of the internal iliac artery (IIA: internal iliac artery; AT: anterior trunk; PT: posterior trunk; UMA: umbilical artery; SVA: superior vesical artery; IPA: internal pudendal artery; LSA: lateral sacral artery; OA: obturator artery; GPT: gluteopudendal trunk; SGA: superior gluteal artery; UTA: uterine artery; AB branch: anomalous branch; AB communicating: anomalous branch communicating; iliacus Br: iliacus branch; PMajor Br: psoas major branch).