Anat Cell Biol.  2019 Sep;52(3):340-343. 10.5115/acb.19.018.

Independent origin of anterior interventricular and left marginal arteries from the left posterior aortic sinus

Affiliations
  • 1Department of Anatomy, Melaka Manipal Medical College (Manipal Campus), Manipal Academy of Higher Education, Manipal, India. nayaksathish@gmail.com

Abstract

We present a unique, unreported variation of the left coronary artery. During dissection classes for first-year medical students, we observed the absence of left coronary artery in an adult male cadaver aged approximately 78 years. The left aortic sinus was dilated and it gave origin to anterior interventricular and left marginal arteries independently. Left marginal artery was large and the circumflex artery arose from it. There were two independent opening for anterior interventricular and left marginal arteries in the left posterior aortic sinus. No variations were found in the origin and branching pattern of right coronary artery and the walls and chambers of the heart.

Keyword

Coronary artery; Ascending aorta; Anterior interventricular; Circumflex; Heart

MeSH Terms

Adult
Aorta
Arteries*
Cadaver
Coronary Vessels
Heart
Humans
Male
Sinus of Valsalva*
Students, Medical
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