DOI: 10.36347/sjmcr.2016.v04i05.024

Pages: 359-362

We report a very rare case of bilateral high division of sciatic nerve on the either side’s of 53 years old male Sudanese Cadaver with unilateral left divided piriformis muscle. Sciatic nerve on the either sides divided within the pelvis into two terminal branches: common fibular nerve and tibial nerve and entered into the gluteal region .On the left side there is divided piriformis ' with superior and inferior equal parts, common fibular nerve pass between these 2 heads of piriformis and tibial nerve pass bellow the divided piriformismuscle and then bellow the inferior gemillus muscle. On the right side both branches of sciatic nerve: common fibular nerve and tibial nerve pass bellow the undivided piriformis muscle. Normal piriformis muscle on the right. What is rare is not to find bilateral high division of sciatic nerve but is very rare to find different types of high division in the same Cadaver. To our knowledge there is no literature reporting this type of variation.