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CASE REPORT
A cadaveric analysis of anatomical variations of the musculocutaneous nerve
1
Department of Anatomy, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, Poland
Submission date: 2022-05-07
Final revision date: 2022-07-14
Acceptance date: 2022-07-15
Online publication date: 2022-09-20
Corresponding author
Ewa Toruńska
Department of Anatomy, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, Warszawska 30, 10-082 Olsztyn, Poland. Tel.: +48 721 255 309.
Department of Anatomy, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, Warszawska 30, 10-082 Olsztyn, Poland. Tel.: +48 721 255 309.
Pol. Ann. Med. 2022;29(2):253–256
KEYWORDS
TOPICS
ABSTRACT
Introduction:
Variations within musculocutaneus nerve (MCN) are very frequent. Such cases should be discussed extensively to reduce the risk of iatrogenic damage during surgery.
Aim:
In this paper, we wanted to present the unusual variability within the brachial plexus, which is the double MCN.
Case study:
We present a case of accesory MCN found during the cadaveric dissection.
Results and discussion:
In this paper we encountered two musculocutaneous nerves, of which MCN proper runs as standard innervating the biceps brachii and the coracobrachialis muscle, while MCN accessory extending distally from MCN proper and innervates the brachialis.
Conclusions:
The case analysed by us is rare in the literature. Brachial plexus variations are very common and clinically important.
Variations within musculocutaneus nerve (MCN) are very frequent. Such cases should be discussed extensively to reduce the risk of iatrogenic damage during surgery.
Aim:
In this paper, we wanted to present the unusual variability within the brachial plexus, which is the double MCN.
Case study:
We present a case of accesory MCN found during the cadaveric dissection.
Results and discussion:
In this paper we encountered two musculocutaneous nerves, of which MCN proper runs as standard innervating the biceps brachii and the coracobrachialis muscle, while MCN accessory extending distally from MCN proper and innervates the brachialis.
Conclusions:
The case analysed by us is rare in the literature. Brachial plexus variations are very common and clinically important.
FUNDING
None declared.
CONFLICT OF INTEREST
None declared.
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