Multiple Anatomical variations in an upper limb – a case report

Main Article Content

Sharmila Saran
Thotakura Balaji
Hannah Sugirthabhai Rajila Rajendran
G Vaithianathan
Syamly
Janani Yoganandham

Abstract

Emergence of various case reports are being a significant key in many circumstances for medical professionals. In this case report, the anomalous variations in a single female cadaver of an upper limb is highlighted. On left side of a limb, Medial cutaneous nerve of arm was absent; instead the nerve supply was reinforced by the extended extra thoracic intercostobrachial nerve. Supernumerary head of biceps were originated from the anteromedial surface of humerus and inserted into radial tuberostiy as a common variation was noted. This muscle was innervated by communicated twigs between median and muscluocutaneous nerve. In forearm Palmaris longus was absent and in palm the third lumbrical muscle was supplied by branches of Median nerve. On right side of the upper limb  no significant variations as like left sided was not noticed, but in the pectoral region presence of recti sternalis was observed and it was innervated by intercostals nerve fibres. The reason may be evolutionary and phyologentically signified.         

Article Details

How to Cite
Saran, S. ., Balaji, T., Rajendran, H. S. R., Vaithianathan, G., Syamly, & Yoganandham, J. (2014). Multiple Anatomical variations in an upper limb – a case report. Medical Science, 2(1), 93-98. https://doi.org/10.29387/ms.2014.2.1.93-98
Section
Case Reports
Author Biographies

Sharmila Saran, Chettinad Hospital and Research Institute, Tamil Nadu, India

M.Sc, Medical Anatomy, Assistant Professor, Department of Anatomy

Thotakura Balaji, Chettinad Hospital and Research Institute, Kancheepuram district

M.Sc, Ph.D., Professor, Department of Anatomy

Hannah Sugirthabhai Rajila Rajendran, Chettinad Hospital and Research Institute, Tamil Nadu, India

Associate professor, Department of Anatomy

G Vaithianathan, Chettinad Hospital and Research Institute, Tamil Nadu, India

M.Sc (Medical Anatomy), Assistant Professor

Syamly, Chettinad Hospital and Research Institute, Tamil Nadu, India

M.Sc. (Medical Anatomy), Final year student, Department of Anatomy

Janani Yoganandham, Chettinad Hospital and Research Institute, Tamil Nadu, India

MBBS, MD Anatomy, Final year student, Department of Anatomy

References

Susan standring.In: Grays anatomy: the anatomical basis of clinical practice. 39th edition.Churchill Livingstone, chapter 5: pectoral gridle and upper limb .David johnson.pg 858.

Beth Jung F, Gretchen Ahrendt M, Anne Louise Oaklander, Robert Dworkin H. Neuropathic pain following breast cancer surgery: proposed classification and research update. Pain 2003; 104: 1–13.

Cunnick GH1, Upponi S, Wishart GC.Anatomical variants of the intercostobrachial nerve encountered during axillary dissection. Breast. 2001;10(2):160-62.

Loukas M, Hullet J, Louis JR, Holdman S, Holdman D. The gross anatomy of the Extrathoracic Course of the Intercostobrachial Nerve. Clinical Anatomy 2006; 19: 106–111.

Rodriguez-niedenfuhr M, Vazquez T, Choi D, Parkin I, Sanudo JR. Supernumerary humeral heads of the biceps brachii muscle revisited. Clinical Anatomy 2003; 16(3):197-203.

Song Eun Lee, Chaeyong Jung, Kyu Youn Ahn, Kwang Il Nam. Bilateral asymmetric supernumerary heads of biceps brachii. Anatomy and Cell biology 2011; 44:238-240.

Mamatha H, Suhani S, Lakshmeesha Rao, Aruna Shree, Naveen Kumar. Supernumerary heads of biceps brachii muscle in south indian cadavers . Anatomy journal of africa 2013; 2 (1): 108-113.

Sachdeva K.L and Single RK Communication between median and musculocutaneous nerve. Journal of Morphological Science 2011; 28(4): 246-249.

Howell AB. Phylogeny of the distal musculature of the pectoral appendage. J Morphol 1936a;60:287-315.

Howell AB. The musculature of antebrachium and manus in the platypus. Am J Anat 1936b; 59:425-432.

Haines RW. The flexor muscles of the forearm and hand in lizards and mammals. J Anat. 1950;84:13–29.

Diogo A, Abdala V, Aziz M.A, Lonergan N and Wood B.A. Fish to modern humans – Comparative anatomy, homologies and evolution of the pectoral and forelimb musculature.J. Anat 2009; 214:694–716.

Sebastin SJ, Puhaindran ME, Lim AY, Lim IJ, Bee WH.The prevalence of absence of the palmaris longus--a study in a Chinese population and a review of the literature.J Hand Surg Br. 2005 Oct;30(5):525-7.

Wilson J.T, Ebin M.B .Two cases of variation in the nerve-supply of the first lumbrical muscle in the hand. J Anat Physiol, 24(Pt 1): 22–26.

Harish K, Gopinath K.S. sternalis muscle: importance in surgery of the breast. Surgical and radiological anatomy 2003; 25:311-314.

Deepali Kulkarni U and Umesh Kulkarni K. Unilateral rectus sternalis muscle – a case report.Journal of medical science 2010; 3 (2 ):169 -171.

Most read articles by the same author(s)