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open access eISSN 2093-3673

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Anat Cell Biol

Published online February 28, 2024

https://doi.org/10.5115/acb.23.252

Copyright © Korean Association of ANATOMISTS.

An anomalous pseudoganglion associated with high division of sciatic nerve

Alka Vithalrao Bhingardeo1 , Ayush Amlan1 , Mrudula Chandrupatla1 , Shailaja Prabhala2 , Shrinivas Somalwar2

Departments of 1Anatomy and 2Pathology, AIIMS Bibingar, Bibingar, India

Correspondence to:Alka Vithalrao Bhingardeo
Department of Anatomy, AIIMS Bibingar, Bibingar, Hyderabad 508126, India
E-mail: dralkabhingardeo@gmail.com

Received: September 26, 2023; Revised: December 10, 2023; Accepted: January 10, 2024

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

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.

Keywords: Sciatic nerve, Tibial nerve, Pseudoganglion, Pudendal nerve, Posterior femoral cutaneous nerve

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