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International Journal of Advances In Case Reports

Volume 11, Issue 1, 2024
Mcmed International
International Journal of Advances In Case Reports
Issn
XXX-XXXX (Print), 2349 - 8005 (Online)
Frequency
bi-annual
Email
editorijacr@mcmed.us
Journal Home page
http://mcmed.us/about/ijacr
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Abstract
Title
AN UNUSUAL ORIGIN OF MUSCULOCUTANEOUS AND ULNAR NERVE FROM MEDIAN NERVE
Author
Shriya Ravichandran*, Sharadkumar P. Sawant, Shaheen Rizvi
Email
shriya1407@gmail.com
keyword
Brachial Plexus, Anomalous Median Nerve, Lateral Roots, Breast Carcinoma, Surgeons, Pain Management Therapy.
Abstract
During routine dissection of a 60 year old embalmed male cadaver in the department of Anatomy at K. J. Somaiya Medical College, Sion, Mumbai, India, the unusual origin of musculocutaneous and ulnar nerve from median nerve were observed in the right upper limb. The thorough and meticulous dissection of axilla, arm, forearm and palm of both the upper limbs were done to note the course of the median nerve. However, the distribution of the anomalous median nerve was normal in arm, forearm and palm. The arterial pattern in the arm (axillary and brachial arteries) was also normal. The photographs of the variations were taken for proper documentation.The median nerve and its roots are close to the axillary vein, which is used as the most cranial limit for axillary lymph node dissection, a procedure used in treating certain tumours, such as breast carcinoma and melanoma. The variations in the formation, course & distribution of median nerve are clinically important for surgeons, orthopaedicians and anaesthetist performing pain management therapies on the upper limb. These variations are compared with the earlier data & it is concluded that variations in branching pattern of cords of brachial plexus are a rule rather than exception. A lack of awareness of variations with different patterns might complicate surgical repair and may cause ineffective nerve blockade.
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