Case Report
BibTex RIS Cite

Formation Variation of the medianus nerve: A Cadaveric Case Report

Year 2025, Volume: 8 Issue: 2, 240 - 243, 30.06.2025
https://doi.org/10.53446/actamednicomedia.1696468

Abstract

The median nerve, the longest branch of the brachial plexus, is formation in axillary fossa by a fusion of two nerves including the radix lateralis nervi mediani and radix medialis nervi mediani. A variant of that formation was observed during routine dissection at anatomy department of our faculty. It was found that the left median nerve was formed by three branches (two lateral and one medial). One of the roots originated from the fasciculus medialis; the other two roots originated from the fasciculus lateralis. This variation should be known and has clinical importance especially in surgical interventions, surgical interventions of traumatic cases and radiologic evaluations in order not to mislead the clinician

Ethical Statement

This study was conducted using cadaveric material in an anatomy laboratory authorized for educational and research purposes. The use of the cadaver was carried out in accordance with institutional permissions and ethical guidelines. All procedures conformed to the principles of the Declaration of Helsinki.

References

  • Pandey SK, Shukla VK. Anatomical variations of the cords of brachial plexus and the median nerve. Clin Anat. 2007;20(2):150-156. doi:10.1002/ca.20365
  • Budhiraja V, Rastogi R, Asthana AK. Anatomical variations of median nerve formation: embryological and clinical correlation. J Morphol Sci. 2011;28(4):283-286.
  • Ghosh B, Dilkash MNA, Prasad S, Sinha SK. Anatomical variation of median nerve: cadaveric study in brachial plexus. Anat Cell Biol. 2022;55(2):130-134. doi:10.5115/acb.22.022
  • Choi D, Rodríguez-Niedenführ M, Vázquez T, Parkin I, Sañudo JR. Patterns of connections between the musculocutaneous and median nerves in the axilla and arm. Clin Anat. 2002;15(1):11-17. doi:10.1002/ca.1085
  • Uzun A, Seelig LL Jr. A variation in the formation of the median nerve: communicating branch between the musculocutaneous and median nerves in man. Folia Morphol (Warsz). 2001;60(2):99-101.
  • Larsen WJ. Human Embryology. 3rd Edition. New York, USA: Churchill Livingstone; 2001.
  • Sanes JR, Reh TA, Harris WA. Development of the Nervous System. 3rd Edition. Amsterdam, Netherlands: Elsevier; 2012.
  • Sontakke BR, Tarnekar AM, Waghmare JE, Ingole IV. An unusual case of asymmetrical formation and distribution of median nerve. Int J Anat Var. 2011;4:57-60.
  • Morimoto D, Isu T, Kim K, Sugawara A, Isobe M, Morita A. Proximal entrapment neuropathy of the median nerve above the elbow-case report. J Nippon Med Sch. 2015;82(6):287-289. doi:10.1272/jnms.82.287
  • Nonthasaen P, Chaimongkhol T, Chobpenthai T, Mahakkanukrauh P. Anatomical variations and surgical implications of axillary artery branches: an anatomical study of the coracoid process region. Anat Cell Biol. 2025;58(1):35-43. doi:10.5115/acb.24.215

N.medianus'un Oluşum Varyasyonu: Bir Kadavra Olgu Sunumu

Year 2025, Volume: 8 Issue: 2, 240 - 243, 30.06.2025
https://doi.org/10.53446/actamednicomedia.1696468

Abstract

Plexus brachialisin en uzun dalı olan n. medianus; fossa axillariste, radix lateralis nervi mediani ile radix medialis nervi mediani'nin birleşmesi ile oluşmaktadır.
Sakarya Üniversitesi Tıp Fakültesi Anatomi Anabilim Dalı’nda tıp öğrencileri için yapılan rutin diseksiyon sırasında, N.medianus'un varyant bir oluşumu gözlenmiştir. Sol aksiller bölgede, normalden farklı olarak N.medianus'un iki lateral ve bir medial dalın birleşimiyle oluştuğu tespit edilmiştir. Köklerin biri, fasciculus medialisten; diğer iki kök ise fasciculus lateralisten kaynaklanmaktaydı. Bu varyasyon, özellikle cerrahi girişimlerde, travmatik olguların cerrahi girişimlerinde ve radyolojik değerlendirmelerde klinisyeni yanıltmaması için bilinmelidir ve klinik öneme sahiptir.

References

  • Pandey SK, Shukla VK. Anatomical variations of the cords of brachial plexus and the median nerve. Clin Anat. 2007;20(2):150-156. doi:10.1002/ca.20365
  • Budhiraja V, Rastogi R, Asthana AK. Anatomical variations of median nerve formation: embryological and clinical correlation. J Morphol Sci. 2011;28(4):283-286.
  • Ghosh B, Dilkash MNA, Prasad S, Sinha SK. Anatomical variation of median nerve: cadaveric study in brachial plexus. Anat Cell Biol. 2022;55(2):130-134. doi:10.5115/acb.22.022
  • Choi D, Rodríguez-Niedenführ M, Vázquez T, Parkin I, Sañudo JR. Patterns of connections between the musculocutaneous and median nerves in the axilla and arm. Clin Anat. 2002;15(1):11-17. doi:10.1002/ca.1085
  • Uzun A, Seelig LL Jr. A variation in the formation of the median nerve: communicating branch between the musculocutaneous and median nerves in man. Folia Morphol (Warsz). 2001;60(2):99-101.
  • Larsen WJ. Human Embryology. 3rd Edition. New York, USA: Churchill Livingstone; 2001.
  • Sanes JR, Reh TA, Harris WA. Development of the Nervous System. 3rd Edition. Amsterdam, Netherlands: Elsevier; 2012.
  • Sontakke BR, Tarnekar AM, Waghmare JE, Ingole IV. An unusual case of asymmetrical formation and distribution of median nerve. Int J Anat Var. 2011;4:57-60.
  • Morimoto D, Isu T, Kim K, Sugawara A, Isobe M, Morita A. Proximal entrapment neuropathy of the median nerve above the elbow-case report. J Nippon Med Sch. 2015;82(6):287-289. doi:10.1272/jnms.82.287
  • Nonthasaen P, Chaimongkhol T, Chobpenthai T, Mahakkanukrauh P. Anatomical variations and surgical implications of axillary artery branches: an anatomical study of the coracoid process region. Anat Cell Biol. 2025;58(1):35-43. doi:10.5115/acb.24.215
There are 10 citations in total.

Details

Primary Language English
Subjects Anatomy, Neurology and Neuromuscular Diseases, Environmental Health, Public Health (Other)
Journal Section Case Report
Authors

Mehtap Erdoğan 0000-0002-5422-5091

Keziban Karacan 0000-0001-8861-1647

Hüseyin Baylan 0000-0002-9150-9210

Ebru Mihriban Güven 0000-0002-9743-2867

Publication Date June 30, 2025
Submission Date May 11, 2025
Acceptance Date June 17, 2025
Published in Issue Year 2025 Volume: 8 Issue: 2

Cite

AMA Erdoğan M, Karacan K, Baylan H, Güven EM. Formation Variation of the medianus nerve: A Cadaveric Case Report. Acta Med Nicomedia. June 2025;8(2):240-243. doi:10.53446/actamednicomedia.1696468

images?q=tbn:ANd9GcSZGi2xIvqKAAwnJ5TSwN7g4cYXkrLAiHoAURHIjzbYqI5bffXt&s

The articles in the Journal of "Acta Medica Nicomedia" are open access articles licensed under a Creative Commons Attribution-ShareAlike 4.0 International License at the web address https://dergipark.org.tr/tr/pub/actamednicomedia