Bhingardeo Alka Vithalrao, Amlan Ayush, Chandrupatla Mrudula, Prabhala Shailaja, Somalwar Shrinivas
Department of Anatomy, AIIMS Bibingar, Bibingar, India.
Department of Pathology, AIIMS Bibingar, Bibingar, India.
Anat Cell Biol. 2024 Jun 30;57(2):320-323. doi: 10.5115/acb.23.252. Epub 2024 Feb 28.
Sciatic nerve (SN) is the thickest and longest nerve of the body. Deviations from the normal anatomical origin and level of bifurcation of SN have been frequently reported. In the present case, we are presenting a unique scenario of origin of terminal branches of the SN-tibial nerve (TN) and common peroneal nerve (CPN) in the pelvic region itself from divisions arising directly from the lumbosacral plexus. This variation was associated with origin of posterior femoral cutaneous nerve from the superior division of CPN with anomalous communicating branches between pudendal nerve and TN. The unique characteristics of the present case are the presence of 'pseudoganglion' found on the inferior division of TN. The present case stands out as the first of its kind to mention such pseudoganglion. Knowledge of some unusual findings like presence of pseudoganglion and intercommunications between nerves have clinical implications in anesthesiology, neurology, sports medicine, and surgery.
坐骨神经（SN）是人体最粗且最长的神经。关于SN正常解剖起源和分叉水平的偏差已有诸多报道。在本病例中，我们呈现了一种独特的情况，即SN的终末分支——胫神经（TN）和腓总神经（CPN）在盆腔区域本身直接起源于腰骶丛的分支。这种变异与股后皮神经起源于CPN的上支以及阴部神经和TN之间存在异常交通支有关。本病例的独特之处在于在TN的下支发现了“假神经节”。本病例作为首例提及此类假神经节的案例而引人注目。了解诸如假神经节的存在以及神经之间的相互连通等一些不寻常的发现，在麻醉学、神经病学、运动医学和外科手术中具有临床意义。
