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CASE REPORT
Year : 2022  |  Volume : 71  |  Issue : 1  |  Page : 74-76

Unusual additional distal aponeurotic slips of biceps brachii: A rare variation


1 Department of Anatomy, School of Medical Sciences and Research, Sharda University; Department of Anatomy, King George's Medical University, Lucknow, Uttar Pradesh, India
2 Department of Anatomy, Shri Shankaracharya Institute of Medical Sciences, Bhilai, Chhattisgarh, India
3 Department of Anatomy, Government Institute of Medical Sciences, Greater Noida, India
4 Department of Anatomy, King George's Medical University, Lucknow, Uttar Pradesh, India

Correspondence Address:
Dr. Ritu Singh
Department of Anatomy, School of Medical Sciences and Research, Sharda University, Greater Noida
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JASI.JASI_97_20

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Biceps brachii muscle is basically a powerful supinator. Although there is ample literature on variant origin of biceps brachii, variant insertion pattern was minimally reported. Here, we report a case, in which apart from usual insertion of biceps brachii, three distal accessory aponeurotic slips were found on the right arm of 55-year-old embalmed male cadaver. Two slips were arising from the lateral most part of bicipital aponeurosis traversing across the cubital fossa superficial to the brachial artery and median nerve and get attached to deep fascia covering the brachioradialis and pronator teres. Third accessory aponeurotic slip arises from the lateral side of biceps brachii muscle belly, traversing superficial to the musculocutaneous nerve and get attached to deep fascia covering the lateral border of brachioradialis and extensor carpi radialis longus. These extra slips may affect the kinematics of biceps brachii muscle and adds to the differential diagnosis of variety of clinical symptoms of neurovascular syndrome.


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