IJAR.2017.338

Type of Article:  Case Report

Volume 5; Issue 3.3 (September 2017)

Page No.: 4369-4372

DOI: https://dx.doi.org/10.16965/ijar.2017.338

BILATERAL VARIATION IN THE CAROTID ARTERIAL SYSTEM: A CASE REPORT

Padmashree.B.R 1, Radhika P.M *2, Veena Vidyashankar 3, Shailaja Shetty 4.

1 Postgraduate , Department of Anatomy, Ramaiah Medical College, Bangalore, Karnataka, India.

*2 Assistant Professor, Department of Anatomy, Ramaiah Medical College, Bangalore, Karnataka, India.

3 Associate Professor, Department of Anatomy,  Ramaiah Medical College, Bangalore, Karnataka, India.

4  Professor &HOD, Department of Anatomy, Ramaiah Medical College, Bangalore, Karnataka, India.

Address for Correspondence: Dr.Radhika P.M, Assistant Professor, Department of Anatomy, Ramaiah Medical College, MSRIT Post, Bangalore, 560054, India. Phone: 9035044023 E-Mail: parameshradhika@gmail.com

ABSTRACT:

Introduction: Common carotid artery is the most important arterial system which supplies the structures of head and neck region. Variations have been documented with respect to the course, branching and distribution of common carotid artery. Variations in the branching pattern of external carotid artery are also commonly documented. The branches of external carotid artery are important landmarks for adequate exposure and appropriate placement of cross clamps on the carotid artery.It is important for plastic surgeons in orderto avoid iatrogenic injuries and create a blood less surgical field

Materials and Methods: During the routine dissection of head and neck region of a 50 year old, male embalmed cadaver in the Department of Anatomy, Ramaiah Medical College during the year 2015-16, a variation in the position and branching pattern of external carotid artery was noted bilaterally. All the variations were documented and digitally photographed.

Observation: External carotid artery was anterolateralto internal carotid artery in the lower part of the carotid triangle on both right & left sides.  On the right side, superior thyroid artery was arising from common carotid artery. On left side, Superior thyroid artery, ascending pharyngeal artery and the lingual artery were arising from common carotid arteryproximal to its bifurcation.

Conclusion: A thorough knowledge of  variations in carotid arterial system are very much important to surgeons during ligation of the blood vessels at the time of surgeries  involving the head and neck region to prevent iatrogenic complications. Knowledge of these variations is also important for radiologist for interpretation of angiograms.

Key words: Common carotid artery, external carotid artery, carotid bifurcation, superior thyroid artery, lingual artery.

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Cite this article: Padmashree.B.R, Radhika P.M, Veena Vidyashankar, Shailaja Shetty. BILATERAL VARIATION IN THE CAROTID ARTERIAL SYSTEM: A CASE REPORT. Int J Anat Res 2017;5(3.3):4369-4372. DOI: 10.16965/ijar.2017.338