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Aberrant Origin of Obturator Artery- A Case Report |
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Parul Upadhayay, Ranjeeta Hansdak, Sneh Agarwal 1. Senior Resident, Department of Anatomy, Lady Hardinge Medical College, Delhi, India. 2. Assistant Professor, Department of Anatomy, Lady Hardinge Medical College, Delhi, India. 3. Director Professor and Head, Department of Anatomy, Lady Hardinge Medical College, Delhi, India. |
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Correspondence Address : Ranjeeta Hansdak, A10/02/SF, Block A, BPTP Parkland, Sector-85, Greater Faridabad, Haryana, India. E-mail: ranjeetahansdak@gmail.com |
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| ABSTRACT |  | ||||||||||||||||||||||||||
: The medial compartment of thigh is nourished by a branch from anterior division of internal iliac artery called Obturator Artery (OA). However, many studies have documented variation in the origin of the artery from other neighboring vessels. Hence, any deviation from the normal pattern should be acknowledged to prevent any injuries during herniorrhaphy or other pelvic procedures. The study was conducted on a pelvis of female cadaver of age 55 years. Length of the artery and its distance from the bifurcation of common iliac artery using the measuring tape were noted. OA was seen to be originating from the inferior epigastric artery bilaterally along with several unusual but significant branches budding from it. The case report shows variant of OA which is of academics interest to students, anatomists, radiologist, general and orthopedic surgeons. Further dissection of more number of pelvic specimens might help to assess the frequency or prevalence of the variation. | |||||||||||||||||||||||||||
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| Keywords : External iliac artery, Herniorrhaphy, Inferior epigastric, Pelvis, Reconstruction | |||||||||||||||||||||||||||
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DOI and Others :
10.7860/IJARS/2021/46286:2666
Date of Submission: Aug 13, 2020 Date of Peer Review: Oct 17, 2020 Date of Acceptance: Dec 24, 2021 Date of Publishing: Jul 01, 2021 AUTHOR DECLARATION: • Financial or Other Competing Interests: None • Was informed consent obtained from the subjects involved in the study? NA • For any images presented appropriate consent has been obtained from the subjects. NA PLAGIARISM CHECKING METHODS: • Plagiarism X-checker: Aug 18, 2020 • Manual Googling: Aug 24, 2021 • iThenticate Software: Apr 06, 2021 (18%) Etymology: Author Origin |
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| Case Report |
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During routine dissection of pelvis of one adult female cadaver of 55 years for teaching undergraduate students in dissection hall of Lady Hardinge Medical College, Delhi; on the right hand side it was obseved that (Table/Fig 1) external iliac artery gave rise to two branches-deep circumflex iliac artery laterally at a distance of 7.8 cm from the point of bifurcation of common iliac artery. At the same level, a medial branch (inferior epigastric artery) was given off which after coursing for 2 cm bifurcated to give inferior epigastric artery proper and a large variant obturator artery. The artery coursed downwards, forwards and medially along the posterior surface of superior ramus of pubis for 5 cm. It then terminated by supplying the adductor compartment of thigh after passing through the obturator canal. At its exit, it was related to obturator vein and obturator nerve medially. Similarly, on the left-side (Table/Fig 2), the external iliac artery gave two branches-deep circumflex iliac artery laterally at a distance of 6.1 cm from the point of bifurcation of common iliac artery and a medial branch (inferior epigastric artery) was given off 3.2 cm proximal to the lateral branch which after coursing for 1.7 cm bifurcated to give inferior epigastric artery proper and a large variant obturator artery. This 4.5 cm long variant obturator artery while coursing downwards, forwards and medially gave rise to 2-3 pubic branches; just before leaving the pelvic cavity through obturator canal the artery gave superior peritoneal branch and an inferior vaginal branch, and it itself terminated by supplying the medial compartment of thigh. Throughout its course, both right and left variant of obturator artery were related to obturator internus and its fascia laterally and ureter medially. The internal iliac artery, obturator vein and obturator nerve displayed normal anatomy. | |||||||||||||||||||||||||||
| Discussion |
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During routine dissection of pelvis of one adult female cadaver of 55 years for teaching undergraduate students in dissection hall of Lady Hardinge Medical College, Delhi; on the right hand side it was obseved that (Table/Fig 1) external iliac artery gave rise to two branches-deep circumflex iliac artery laterally at a distance of 7.8 cm from the point of bifurcation of common iliac artery. At the same level, a medial branch (inferior epigastric artery) was given off which after coursing for 2 cm bifurcated to give inferior epigastric artery proper and a large variant obturator artery. The artery coursed downwards, forwards and medially along the posterior surface of superior ramus of pubis for 5 cm. It then terminated by supplying the adductor compartment of thigh after passing through the obturator canal. At its exit, it was related to obturator vein and obturator nerve medially. Similarly, on the left-side (Table/Fig 2), the external iliac artery gave two branches-deep circumflex iliac artery laterally at a distance of 6.1 cm from the point of bifurcation of common iliac artery and a medial branch (inferior epigastric artery) was given off 3.2 cm proximal to the lateral branch which after coursing for 1.7 cm bifurcated to give inferior epigastric artery proper and a large variant obturator artery. This 4.5 cm long variant obturator artery while coursing downwards, forwards and medially gave rise to 2-3 pubic branches; just before leaving the pelvic cavity through obturator canal the artery gave superior peritoneal branch and an inferior vaginal branch, and it itself terminated by supplying the medial compartment of thigh. Throughout its course, both right and left variant of obturator artery were related to obturator internus and its fascia laterally and ureter medially. The internal iliac artery, obturator vein and obturator nerve displayed normal anatomy. | |||||||||||||||||||||||||||
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