Advertisement

Surgical and Radiologic Anatomy

, Volume 41, Issue 7, pp 849–852 | Cite as

Anomalous anastomosis between the external carotid artery and vertebrobasilar artery via the hypoglossal canal: a case report and review of literature

  • Ryoo YamamotoEmail author
  • Naoki Mori
  • Yoshiharu Nakae
  • Fumiaki Tanaka
  • Ken JohkuraEmail author
Anatomic Variations
  • 36 Downloads

Abstract

We report a case of an anomalous anastomosis formed between the external carotid artery (ECA) and the vertebrobasilar artery (VBA) and passing through the hypoglossal canal. A carotid–vertebrobasilar anastomosis of this kind is typically considered a variant of persistent primitive hypoglossal artery which usually originates from the internal carotid artery. However, the anastomotic vessel in this case had a common trunk with the occipital artery (OA), a remnant of the primitive proatlantal artery. The proximal and distal parts of the anastomotic vessel seemed to have been derived from the primitive proatlantal artery and the primitive hypoglossal artery, respectively. Thus, we propose that this ECA–VBA anastomosis, which passed through the hypoglossal canal and had a common trunk with the OA, be referred to as a dilated primitive hypoglossal–proatlantal anastomosis; that is, a dilated ascending pharyngeal artery rather than a variant of persistent primitive hypoglossal artery.

Keywords

Primitive hypoglossal artery Proatlantal artery External carotid artery Occipital artery Hypoglossal branch of ascending pharyngeal artery 

Notes

Author contributions

RY: manuscript writing and case analysis. NM: case analysis. YN: case analysis. FT: manuscript editing. KJ: manuscript editing and case analysis.

Funding

No funding was received towards this work.

Compliance with ethical standards

Conflict of interest

The authors have no conflicts of interest to disclose.

References

  1. 1.
    Brismar J (1976) Persistent hypoglossal artery, diagnostic criteria. Report of a case. Acta Radiol Diagn (Stockh) 17:160–166CrossRefGoogle Scholar
  2. 2.
    Lasjaunias P, Berenstein A, Ter Brugge K (2001) Surgical neuroangiography. Clinical vascular anatomy and variations, vol 1, 2nd edn. Springer-Verlag Berlin Heidelberg, New York, pp 165–260CrossRefGoogle Scholar
  3. 3.
    Lasjaunias P, Guibert-Tranier F, Braun JP (1981) The pharyngo-cerebellar artery or ascending pharyngeal artery origin of the posterior inferior cerebellar artery. J Neuroradiol 8:317–325Google Scholar
  4. 4.
    Lasjaunias P, Théron J, Moret J (1978) The occipital artery. Anatomy–normal arteriographic aspects–embryological significance. Neuroradiology 15:31–37CrossRefGoogle Scholar
  5. 5.
    Lee EJ, Chang HW, Cho CH, Kim E, Lee SK, Kwon JH (2010) Rare variant of persistent primitive hypoglossal artery in magnetic resonance angiography. Surg Radiol Anat 32:801–804.  https://doi.org/10.1007/s00276-010-0664-y CrossRefGoogle Scholar
  6. 6.
    Meguro T, Terada K, Hirotsune N, Nishino S, Asano T (2007) Unusual variant of persistent primitive hypoglossal artery. Br J Radiol 80:e314–e316CrossRefGoogle Scholar
  7. 7.
    Nakamura M, Kobayashi S, Yoshida T, Kamagata M, Sasaki T (2000) Persistent external carotid-vertebrobasilar anastomosis via the hypoglossal canal. Neuroradiology 42:821–823CrossRefGoogle Scholar
  8. 8.
    Nanto M, Takado M, Ohbuchi H, Mandai A, Osaka Y, Nakahara Y, Tenjin H (2012) Rare variant of persistent primitive hypoglossal artery, arising from the external carotid artery. Neurol Med Chir (Tokyo) 52:513–515CrossRefGoogle Scholar
  9. 9.
    Obayashi T, Furuse M (1980) The proatlantal intersegmental artery: a case report and review of the literature. Arch Neurol 37:387–389CrossRefGoogle Scholar
  10. 10.
    Sabouri S, Ebrahimzadeh SA, Rahimian N (2014) Unusual variant of persistent primitive hypoglossal artery diagnosed by CT angiography: a case report and literature review. Clin Neuroradiol 24:59–63.  https://doi.org/10.1007/s00062-013-0201-6 CrossRefGoogle Scholar
  11. 11.
    Uchino A, Saito N, Okada Y, Kozawa E, Nishi N, Mizukoshi W, Inoue K, Nakajima R, Takahashi M (2013) Persistent hypoglossal artery and its variants diagnosed by CT and MR angiography. Neuroradiology 55:17–23.  https://doi.org/10.1007/s00234-012-1074-0 CrossRefGoogle Scholar
  12. 12.
    Uchino A, Saito N (2011) Persistent hypoglossal artery arising from the external carotid artery diagnosed by MR angiography. Surg Radiol Anat 33:543–545.  https://doi.org/10.1007/s00276-010-0769-3 CrossRefGoogle Scholar
  13. 13.
    Welten RJ, Eikelboom BC, Ackerstaff RG, Ludwig JW (1988) A persistent hypoglossal artery arising from the external carotid artery. Eur J Vasc Surg 2:269–272CrossRefGoogle Scholar

Copyright information

© Springer-Verlag France SAS, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of NeurologyYokohama Brain and Spine CenterYokohamaJapan
  2. 2.Department of Neurology and Stroke CenterHiratsuka Kyosai HospitalHiratsukaJapan
  3. 3.Department of Neurology and Stroke MedicineYokohama City University Graduate School of MedicineYokohamaJapan

Personalised recommendations