44 2033180199
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.
International Journal of Anatomical Variations

Sign up for email alert when new content gets added: Sign up

External jugular vein passing through triangle formed by tendon of cleido-occipitalis cervicalis muscle, trapezius muscle and clavicle – a case report

Author(s): Swamy Ravindra S*, Somayaji SN, Satheesha Nayak B and Mohandas Rao KG

A rare case of variation was found in a South Indian female cadaver of about 40 year of age, during routine dissection of neck region for undergraduate students at Melaka-Manipal Medical College, Manipal University, Manipal. Trapezius muscle on right side of neck presented a rare variation called cleido-occipitalis cervicalis. The variant muscle was a separate part of trapezius and was inserted on the posterior surface of clavicle at the junction of its medial one third with the lateral two thirds. The right external jugular vein was bifid and reunited, then passed between the tendon of cleido-occipitalis cervicalis muscle and clavicle, finally draining into the right suprascapular vein. This unique anatomical position of external jugular vein may lead to its impingement during certain actions of trapezius muscle. Trapezius muscle and external jugular vein of left side did not show any unusual presentation except that the left external jugular vein drained into left internal jugular vein. These variations are important as the external jugular vein is routinely used in catheterization for diagnostic or therapeutic purposes, as well as in port implantation and transjugular intrahepatic porto-systemic shunts or selective venous sampling. Probable embryological cause of the variation has also been explained.

Full-Text | PDF

Recommended Conferences

Global Virtual Summit on Radiology and Oncology

San Francisco, USA

7th Global Meeting on Oncology and Radiology

Paris, France

Global Virtual Summit on Radiology and Oncology

Barcelona, Spain

4th International Conference on Anatomy and Physiology

Montreal, Canada
Google Scholar citation report
Citations : 2140

International Journal of Anatomical Variations received 2140 citations as per Google Scholar report

International Journal of Anatomical Variations peer review process verified at publons