DOI: 10.25881/20728255_2021_16_3_109

Authors

Prostov I.I., Zabaznov K.G., Smarygina E.O., Kantsurov R.N., Yudin V.A., Nemirovich M.V., Blinov I.M.

Rostov State Medical University, Rostov-on-don, Russian Federation

Abstract

Normally, the extracranial part of the internal carotid artery does not have branches. However, there are cases of abnormal artery origin from this segment. Most often, these are branches of the external carotid artery, which are located ectopically. In this article, we demonstrate a case of bilateral origin of the occipital and ascending pharyngeal arteries from the cervical segment of the internal carotid artery with a normally formed external carotid artery in a patient with bilateral critical stenosis of the internal carotid artery. The anatomical anomaly of the extracranial part of the internal carotid artery was detected during preoperative contrast spiral computed tomography, confirmed by arteriography of the branches of the aortic arch. The patient successfully underwent two planned surgical interventions. Eversion carotid endarterectomy was done alternately on both sides. Clinical case demonstrates the variability of the anatomy of the carotid arteries, which must be taken into account when performing surgical interventions in this anatomical area.

Keywords: internal carotid artery, anatomy of variant of the internal carotid artery, ascending pharyngeal artery, occipital artery.

References

1. Nikolaev AV. Topograficheskaja anatomija i operativnaja hirurgija: Uchebnik v 2t. M.: GJeOTAR-Media, 2013. T.2. (In Russ).

2. Simon D, Mahmoud B. Ectopic origin of the ascending pharyngeal artery: implications for carotid surgery. Surg Radiol Anat. 2018; 40: 1181-1183. doi: 10.1007/s00276-018-2088-z.

3. Aggarwal NR, Krishnamoorthy T, Devasia B, et al. Variant origin of superior thyroid artery, occipital artery and ascending pharyngeal artery from a common trunk from the cervical segment of internal carotid artery. Surg Radiol Anat. 2006; 28: 650-653. doi: 10.1007/ s00276-006-0145-5.

4. Small JE, Harrington J, Watkins E. Prevalence of arterial branches arising from the extracranial internal carotid artery on CT angiography. Surg Radiol Anat. 2014; 36: 789-93. doi: 10.1007/s00276-013-1246-6.

5. Busch K, Chandra R, Buckenham T et al. Detection of anomalous cervical internal carotid artery branches by colour duplex ultrasound. Eur J Vasc Endovasc Surg. 2017; 53: 776-782. doi: 10.1016/j.ejvs.2017.03.008.

6. Seidel K. Arteriographische Beobachtung einer selte-nen Carotisanomalie. Fortschr Geb Rontgenstr Nuklearmed. 1965; 103: 390-391.

7. Livini F. The type and normal variations della carotis externa. Arch Ital Biol. 1903; 39: 486-487.

8. Czerwinski F. Variability of the course of external carotid artery and its rami in man in the light of anatomical and radiological studies. Folia Morphology. 1981; 4: 449-454.

9. Kovanov VV. Operativnaja hirurgija i topograficheskaja anatomija. M.: Medicina. 2001. (In Russ).

10. Bowen JC, Garcia M, Garrard CL, et al. Anomalous branch of the internal carotid artery maintains patency distal to a complete occlusion diagnosed by duplex scan. J Vasc Surg. 1997; 26: 164-167.

11. Hayashi N, Hori E, Ohtani Y, et al. Surgical anatomy of the cervical carotid artery for carotid endarterectomy. Neurol Med Chir (Tokyo). 2005; 45: 25-29. doi: 10.2176/nmc.45.25.

12. Karlson B. Osnovy jembriologii po Pjettenu. M.: Mir. 1983. (In Russ).

13. Pokrovskij V. Klinicheskaja angiologija. M.: Medicina. 2004. T 1. (In Russ).

14. Lasjaunias P, Berenstein A, ter Brugge K (2001) Surgical neuroangiography, vol. 1, 2nd edn. Functional anatomy of craniofacial arteries. Springer, Berlin Heidelberg New York. pp 165-223, 370-378.

For citation

Prostov I.I., Zabaznov K.G., Smarygina E.O., Kantsurov R.N., Yudin V.A., Nemirovich M.V., Blinov I.M. Anatomy variant of the extracranial part of the internal carotid artery. Bulletin of Pirogov National Medical & Surgical Center. 2021;16(3):109-112. (In Russ.) https://doi.org/10.25881/20728255_2021_16_3_109