scholarly journals Anatomical Variation of a Communicating Branch between the Musculocutaneous and the Median Nerve: A Case Report

2020 ◽  
Vol 49 (1) ◽  
pp. 71
Author(s):  
Dimosthenis Chrysikos ◽  
Andreas Athanasopoulos ◽  
Panagiotis Georgakopoulos ◽  
Ioannis Antonopoulos ◽  
Alexandros Samolis ◽  
...  
Keyword(s):  
Case Report ◽  
Brachial Plexus ◽  
Clinical Significance ◽  
Anatomical Variation ◽  
Anatomical Variations ◽  
Clinical Findings ◽  
Minimal Invasive ◽  
Musculocutaneous Nerve ◽  
Communicating Branch ◽  
Male Cadaver

<p><strong>Objective</strong>. The aim of our paper is to depict an anatomical variation of the brachial plexus, concerning a communicating branch between the median and the musculocutaneous nerve and its clinical significance. Anatomical variations of the brachial plexus and especially those of the musculocutaneous nerve are quite common. Awareness of these variations is of paramount importance in clinical practice, mainly in achieving best results in minimal invasive or surgical procedures.</p><p><strong>Case Report</strong>. After dissection in upper extremities in a 89-year-old male cadaver, a communicating branch between the median and the musculocutaneous nerve was found. This communicating branch was formed before the musculocutaneous nerve perforated the coracobrachialis muscle. It also derived from the level of the ansa medianis and its course was of an approximately 2cm length.</p><p><strong>Conclusion</strong>. The clinical significance of our study is the entrapment of the musculocutaneous nerve that may cause clinical findings similar to those of the carpal tunnel syndrome.</p>

scholarly journals Bilateral Anatomical Variation in the Formation of Trunks of the Brachial Plexus - A Case Report

2018 ◽  
Vol 35 (01) ◽  
pp. 9-13
Author(s):  
E. Lasch ◽  
M. Nazer ◽  
L. Bartholdy
Keyword(s):  
Case Report ◽  
Brachial Plexus ◽  
Upper Limb ◽  
Scientific Literature ◽  
Case Reports ◽  
Anatomical Variation ◽  
Male Cadaver ◽  
Motor Nerves ◽  
The Right

AbstractThis study presents a bilateral variation in the formation of trunks of brachial plexus in a male cadaver. The right brachial plexus was composed of six roots (C4-T1) and the left brachial plexus of five roots (C5-T1). Both formed four trunks thus changing the contributions of the anterior divisions of the cervical nerves involved in the formation of the cords and the five main somatic motor nerves for the upper limb. There are very few case reports in the scientific literature on this topic; thus making the present study very relevant.

scholarly journals Third Head of the Biceps Brachii Muscle and a Communication between the Musculocutaneous and Median Nerves: A Case Report

2019 ◽  
Vol 36 (01) ◽  
pp. 051-054
Author(s):  
Caroline Dussin ◽  
Lucas Moyses ◽  
Sávio Siqueira
Keyword(s):  
Case Report ◽  
Biceps Brachii ◽  
Anatomical Variations ◽  
Clinical Implications ◽  
Biceps Brachii Muscle ◽  
Present Case Report ◽  
Communicating Branch ◽  
Brachialis Muscle ◽  
Male Cadaver ◽  
The Right

AbstractMany authors have reported and classified several anatomical variations between the musculocutaneous (Mc) and median (Me) nerves, regarding their origin, number, and proximity with the coracobrachialis muscle. There also are, in the scientific community, records classifying the origin of supernumerary heads of the biceps brachii muscle. However, the occurrence of both aforementioned variations in the same arm is very uncommon. During a routine dissection of the right upper limb of a male cadaver, a third head of the biceps brachii was found originating from the fibers of the brachialis muscle, as well as a communicating branch between the Mc and the Me nerves, in the same limb. The objective of the present case report is to describe these multiple variations found, relating them and discussing their relevant clinical implications.

scholarly journals Anatomical Variation of the Brachial Plexus: An Ancillary Nerve of the Middle Trunk Communicating with the Radix of the Median Nerve

2017 ◽  
Vol 8 (1) ◽  
pp. 68-71
Author(s):  
Minh Huynh ◽  
Stewart Spence ◽  
Johnny W Huang
Keyword(s):  
Case Report ◽  
Brachial Plexus ◽  
Median Nerve ◽  
Upper Limb ◽  
Anatomical Variation ◽  
Anatomical Variant ◽  
Iatrogenic Injuries ◽  
Communicating Branch ◽  
Anterior Division

Purpose: Variations in brachial plexus anatomy are common. As such, the knowledge of variations is essential for surgeons and anesthesiologists to decrease the risk of iatrogenic injuries. Moreover, brachial plexus variations often co-exist with aberrant vasculature. The median nerve is formed from contributions by the lateral and medial cords. This case report details a unique variant in the formation of the median nerve. Methods: The anatomical variant presented was identified during an upper-limb dissection of an adult cadaver.Results: The anatomical variant presented demonstrates a bifurcation of the middle trunk of the brachial plexus that coalesces to the radix of the median nerve. Although prior studies have demonstrated median nerve brachial plexus variations, the aforementioned variant arises directly from the middle trunk and communicates directly with the median nerve, while previously mentioned variants often connect to the medial or lateral cords. Conclusion: The communicating branch between the anterior division of the middle trunk and radix of the median nerve represents a unique and uncommon anatomical variation. 

The Branching Pattern and Communications of the Musculocutaneous Nerve

2007 ◽  
Vol 32 (5) ◽  
pp. 560-562 ◽  
Author(s):  
A. KRISHNAMURTHY ◽  
S. R. NAYAK ◽  
L. VENKATRAYA PRABHU ◽  
R. P. HEGDE ◽  
S. SURENDRAN ◽  
...  
Keyword(s):  
Median Nerve ◽  
Peripheral Nerves ◽  
Anatomical Variation ◽  
Anatomical Variations ◽  
Clinical Findings ◽  
Musculocutaneous Nerve ◽  
Branching Pattern ◽  
Upper Limbs ◽  
Lateral Aspect ◽  
Upper Arm

Anatomical variations of peripheral nerves are important and can help explain otherwise incomprehensible clinical findings. A study of 26 right and 18 left formalin-preserved upper limbs identified the fact that the musculocutaneous nerve is subject to considerable anatomical variation, including communication with the median nerve. A study of its branching pattern made us aware of why debility after trauma to the lateral aspect of the upper arm may be more than expected, and this study considers the clinical and surgical importance of these variations of the musculocutaneous nerve.

scholarly journals Bilateral communication between musculocutaneous nerve and median nerve - a case report

2012 ◽  
Vol 01 (02) ◽  
pp. 096-098
Author(s):  
Dhanalakshmi V. ◽  
Santhi B. ◽  
Suba Ananthi K.
Keyword(s):  
Case Report ◽  
Median Nerve ◽  
Adult Male ◽  
Musculocutaneous Nerve ◽  
Communicating Branch ◽  
Male Cadaver ◽  
The Right

AbstractDuring routine dissection of an adult male cadaver, we observed bilateral communication between musculocutaneous nerve and median nerve. The level of origin of the communicating branch from musculocutaneous nerve was different in both arms. In left arm it arose before piercing coracobrachialis and in the right arm after piercing it. It is important to be aware of this variation while planning a surgery in the region of arm, as these nerves are more liable to be injured during operations. Any compression over the communicating branch may give rise to varying patterns of weakness that may impose difficulty in diagnosis for the neurologists.

A rare variation in the formation of the lower trunk of the brachial plexus its embryological basis and clinical importance - a case report

2012 ◽  
Vol 6 (4) ◽  
pp. 49-52
Author(s):  
N Satyanarayana ◽  
R Guha ◽  
P Sunitha ◽  
GN Reddy ◽  
G Praveen ◽  
...  
Keyword(s):  
Case Report ◽  
Brachial Plexus ◽  
Upper Limb ◽  
Clinical Importance ◽  
Medical Sciences ◽  
Nerve Roots ◽  
Rare Variation ◽  
Lower Trunk ◽  
Male Cadaver ◽  
The Right

Brachial plexus is the plexus of nerves, that supplies the upper limb.Variations in the branches of brachial plexus are common but variations in the roots and trunks are very rare. Here, we report one of the such rare variations in the formations of the lower trunk of the brachial plexus in the right upper limb of a male cadaver. In the present case the lower trunk was formed by the union of ventral rami of C7,C8 and T1 nerve roots. The middle trunk was absent. Upper trunk formation was normal. Journal of College of Medical Sciences-Nepal,2011,Vol-6,No-4, 49-52 DOI: http://dx.doi.org/10.3126/jcmsn.v6i4.6727

scholarly journals Cadaveric Study of Anatomical Variations in the Musculocutaneous Nerve and in the Median Nerve

2019 ◽  
Vol 36 (02) ◽  
pp. 122-125
Author(s):  
Abhilasha Priya ◽  
Chandni Gupta ◽  
Antony Sylvan D'souza
Keyword(s):  
Brachial Plexus ◽  
Median Nerve ◽  
Peripheral Nerves ◽  
Anatomical Variations ◽  
Musculocutaneous Nerve ◽  
Branching Pattern ◽  
Kasturba Medical College ◽  
Upper Limbs ◽  
Medical College ◽  
Lateral Cord

Introduction The musculocutaneous nerve and the median nerve are branches from the lateral cord of the brachial plexus with a root value of C5, C6, and C7. The medial root of the median nerve is a branch of the medial cord. The present study aims at observing any variations in these peripheral nerves, so that this knowledge can be utilized by surgeons, anesthesiologists, and orthopedicians during surgical procedures and nerve block. Materials and Methods The present study was carried on 30 adult embalmed cadavers (60 upper limbs) in the department of anatomy of the Kasturba Medical College , Manipal, India. The infraclavicular part of the brachial plexus was dissected, and any anatomical variations in the formation and in the branching pattern of the musculocutaneous nerve and of the median nerve were noted and photographs were taken. Results The median nerve was noted to be formed from 3 roots in 8 out of 60 dissected upper limbs (13.33%). The musculocutaneous nerve was absent in 5% of the dissected limbs, and communications between these 2 nerves were noted in 13.33% of the dissected limbs. Conclusions Noted variations of the nerves may be of help to surgeons operating in the axillas and in the arms.

scholarly journals A rare variation of mandibular nerve and an unusual course of lingual nerve - a case report

2016 ◽  
Vol 05 (01) ◽  
pp. 036-038
Author(s):  
E Anitha ◽  
K Maheswari
Keyword(s):  
Case Report ◽  
Clinical Significance ◽  
Infratemporal Fossa ◽  
Anatomical Variations ◽  
Lingual Nerve ◽  
Mandibular Nerve ◽  
Branching Pattern ◽  
Medical College ◽  
Dental Procedures ◽  
Muscles Of Mastication

AbstractMandibular nerve is a branch of Trigeminal nerve which gives off Lingual, Inferior alveolar, Auriculotemporal, Buccal branch and motor branches to muscles of mastication. Anatomical variations related to mandibular nerve and its branches are of great importance to Oral maxillofacial surgeons and Dentists. During routine cadaveric dissection of infratemporal fossa of an adult male in the Institute of Anatomy, Madurai Medical College, variations in the branching pattern of mandibular nerve and an unusual course of lingual nerve were found on the left side. Such anatomical variations of mandibular nerve and its branches are of clinical significance during dental procedures and maxillofacial surgeries.

scholarly journals Bilateral variations in the roots of origin of the phrenic nerve and absence of fibrous pericardium in an old male cadaver

2016 ◽  
Vol 33 (03) ◽  
pp. 164-167
Author(s):  
S. Ahmadpour ◽  
K. Foghi
Keyword(s):  
Brachial Plexus ◽  
Phrenic Nerve ◽  
Practical Importance ◽  
Anatomical Variations ◽  
Rare Variation ◽  
Male Cadaver ◽  
Supraclavicular Block ◽  
The Right ◽  
Mediastinal Pleura

AbstractPhrenic nerve provides the major motor supply to diaphragm. Various anatomical variations in the course and distribution of the phrenic nerve have reported before. Here we report a rare bilateral asymmetric variation in the roots of origin of the phrenic nerve and absence of fibrous pericardium in an old male cadaver. Specifically, the right phrenic nerve was arising from the upper trunk of the brachial plexus (C5) and the left side nerve originated from the supraclavicular nerve and a tiny branch from C5. In the same cadaver both sides phrenic nerve were buried in the mediastinal pleura. Another interesting finding was absence of the fibrous pericardium. To the best of our knowledge the presented case showed a very rare variation in the roots of origin of the phrenic nerve accompanied with pericardial anomaly which has been less reported. We think such case is of practical importance during supraclavicular block during anesthesia

Sign in / Sign up

Export Citation Format

Share Document