Variations in branching pattern of musculocutaneous nerve with respect to communicating branch between musculocutaneous and median nerve
Journal Title: International Journal of Anatomical Variations - Year 2018, Vol 11, Issue 3
Abstract
Aim: To study and classify the variations in branching of musculocutaneous nerve when the communicating branch is present between median nerve and musculocutaneous nerve. Methods: The study was conducted on 60 upper limbs from 30 embalmed cadavers. Stepwise dissection of axilla and arm was carried out and formation of brachial plexus and its branches were studied. Variations from the normal pattern were noted and photographed. Results: Communicating branch between musculocutaneous nerve and median nerve was observed in 21 of 60 upper limbs specimen studied (36.66%). In these specimens, variations in the branching pattern of musculocutaneous nerve were observed. These variations are described and discussed in the study Conclusions: Knowledge of the variations involving musculocutaneous nerve when communicating branch between musculocutaneous nerve and median nerve is present is clinically important in the evaluation and diagnosis of unusual presentations of peripheral nerve injuries, and effective management of the upper limb motor deficits caused by them.
Authors and Affiliations
Sonali Abhijeet Khake, Dinit K Tom, Swati Belsare
Variant origin and course of the left colic artery: An embryological perspective
The Variations in branching pattern of abdominal arteries are common. These variations are usually due to the changes occurring during the development of vessels. Although the blood supply of the gut is segmental in natu...
Preperitoneal pelvic kidney: Revisiting the significance of variant anatomy to the clinician of the future
The kidneys are retroperitoneal organs applied to the posterior abdominal wall. Renal ectopia and structural alterations are of clinical significance. Most renal ectopia occurs in the pelvis and has a strong association...
Arteria lusoria, truncus bicaroticus, variant left vertebral artery
The normal aorta has three branches from its arch, the brachiocephalic trunk, the left common carotid and the left subclavian artery. Variations in the branching pattern of the aortic arch are not uncommon. We report a c...
A rare observation of mandibular buccal ramus variant of stafne bone defect
The characteristically incidental finding of a mandibular bone depression, most commonly known as Stafne defect, typically presents as an asymptomatic, radiolucent lesion. Classically observed on the lingual surface of t...
Brachial plexus posterior cord variability: a case report and review
The formation and distribution of the brachial plexus is a source of great anatomical variability. This case report details the anatomical variants discovered in the posterior cord of the brachial plexus in a routine cad...