TY - JOUR A1 - , T1 - Anomalous formation and branching pattern of the sciatic and pudendal nerves JO - Eur. J. Anat. SN - 1136-4890 Y1 - 2015 VL - 19 SP - 391 EP - 395 UR - http://www.eurjanat.com/web/paper.php?id=150195sd KW - Sciatic nerve KW - Pudendal Nerve KW - Inferior Rectal nerve KW - Nerve loop KW - Dorsal nerve of clitoris KW - Pudendal nerve proper KW - Sacrotuberous ligament KW - Sacrospinous ligament N2 - Multiple nerve variations were observed in the right gluteal region of a 62 year old female which includes origin, course and branching pattern of the sciatic and pudendal nerves. The sciatic nerve was formed by the L4, L5, S1 and S2 in the pelvis, whereas the pudendal nerve was contributed by the S3, S4 and S5. The pudendal was divided into medial and lateral divisions in the gluteal region. The lateral division had joined the sciatic nerve. High division of the pudendal nerve was observed and all its branches originated from the medial division of the pudendal nerve. The inferior rectal nerve passed through the sacrospinous ligament and formed a loop around the ischial spine. The dorsal nerve of the clitoris passed between the sacrospinous and sacrotuberous ligaments. Since iatrogenic injuries to these nerves may occur during surgery, a thorough knowledge of the variation anatomy of the sciatic and pudendal nerves can help to reduce post-operative complications. Moreover, variation anatomy knowledge might guide the radiologist, surgeons and other health professionals to diagnose and treat various neuralgia related to the perineum and gluteal region. ER -