Median nerve piercing the humeral head of pronator teres muscle: An anatomical case report of atypical median nerve formation and course

Introduction: The objective of this study is to report the variant formation and course of the median nerve, which was observed in the right arm of a male cadaver. Methods: During the routine dissection procedure, it was observed that the median nerve was formed by the blending of three roots, which...

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Main Authors: Y. Lakshmisha Rao, Archi Raj, Mangala M. Pai, Mamatha Tonse, Jasmeen Kaur, J.M. Likitha, B.V. Murlimanju
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Translational Research in Anatomy
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Online Access:http://www.sciencedirect.com/science/article/pii/S2214854X24001018
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author Y. Lakshmisha Rao
Archi Raj
Mangala M. Pai
Mamatha Tonse
Jasmeen Kaur
J.M. Likitha
B.V. Murlimanju
author_facet Y. Lakshmisha Rao
Archi Raj
Mangala M. Pai
Mamatha Tonse
Jasmeen Kaur
J.M. Likitha
B.V. Murlimanju
author_sort Y. Lakshmisha Rao
collection DOAJ
description Introduction: The objective of this study is to report the variant formation and course of the median nerve, which was observed in the right arm of a male cadaver. Methods: During the routine dissection procedure, it was observed that the median nerve was formed by the blending of three roots, which included one medial and two lateral roots. Results: It is also further observed that the median nerve pierced the humeral head of pronator teres just above the medial epicondyle and it passed through the cubital fossa more medially and deeper, making it invisible. Conclusion: Entrapment of median nerve by the pronator teres is among the causes of the proximal median nerve entrapment syndrome. In this context, this interesting and rare variation of pronator teres muscle being pierced by the median nerve will be of interest to the orthopedic specialists, neurosurgeons and hand surgeons. The present study also observed variant formation of the median nerve by triple roots, which is important both for the surgical and anesthesiologic perspective.
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institution Kabale University
issn 2214-854X
language English
publishDate 2025-03-01
publisher Elsevier
record_format Article
series Translational Research in Anatomy
spelling doaj-art-3371425103624479b39d3b53307b5c032025-01-24T04:45:15ZengElsevierTranslational Research in Anatomy2214-854X2025-03-0138100377Median nerve piercing the humeral head of pronator teres muscle: An anatomical case report of atypical median nerve formation and courseY. Lakshmisha Rao0Archi Raj1Mangala M. Pai2Mamatha Tonse3Jasmeen Kaur4J.M. Likitha5B.V. Murlimanju6Department of Anatomy, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Karnataka, Manipal, 576104, IndiaKasturba Medical College Mangalore, Manipal Academy of Higher Education, Karnataka, Manipal, 576104, IndiaDepartment of Anatomy, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Karnataka, Manipal, 576104, IndiaDepartment of Anatomy, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Karnataka, Manipal, 576104, India; Corresponding author.Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Karnataka, Manipal, 576104, IndiaKasturba Medical College Mangalore, Manipal Academy of Higher Education, Karnataka, Manipal, 576104, IndiaDepartment of Anatomy, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Karnataka, Manipal, 576104, IndiaIntroduction: The objective of this study is to report the variant formation and course of the median nerve, which was observed in the right arm of a male cadaver. Methods: During the routine dissection procedure, it was observed that the median nerve was formed by the blending of three roots, which included one medial and two lateral roots. Results: It is also further observed that the median nerve pierced the humeral head of pronator teres just above the medial epicondyle and it passed through the cubital fossa more medially and deeper, making it invisible. Conclusion: Entrapment of median nerve by the pronator teres is among the causes of the proximal median nerve entrapment syndrome. In this context, this interesting and rare variation of pronator teres muscle being pierced by the median nerve will be of interest to the orthopedic specialists, neurosurgeons and hand surgeons. The present study also observed variant formation of the median nerve by triple roots, which is important both for the surgical and anesthesiologic perspective.http://www.sciencedirect.com/science/article/pii/S2214854X24001018Anatomical variationCubital fossaMedian nerveNerve entrapmentPronator teres muscle
spellingShingle Y. Lakshmisha Rao
Archi Raj
Mangala M. Pai
Mamatha Tonse
Jasmeen Kaur
J.M. Likitha
B.V. Murlimanju
Median nerve piercing the humeral head of pronator teres muscle: An anatomical case report of atypical median nerve formation and course
Translational Research in Anatomy
Anatomical variation
Cubital fossa
Median nerve
Nerve entrapment
Pronator teres muscle
title Median nerve piercing the humeral head of pronator teres muscle: An anatomical case report of atypical median nerve formation and course
title_full Median nerve piercing the humeral head of pronator teres muscle: An anatomical case report of atypical median nerve formation and course
title_fullStr Median nerve piercing the humeral head of pronator teres muscle: An anatomical case report of atypical median nerve formation and course
title_full_unstemmed Median nerve piercing the humeral head of pronator teres muscle: An anatomical case report of atypical median nerve formation and course
title_short Median nerve piercing the humeral head of pronator teres muscle: An anatomical case report of atypical median nerve formation and course
title_sort median nerve piercing the humeral head of pronator teres muscle an anatomical case report of atypical median nerve formation and course
topic Anatomical variation
Cubital fossa
Median nerve
Nerve entrapment
Pronator teres muscle
url http://www.sciencedirect.com/science/article/pii/S2214854X24001018
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