Advertisement

Replaced posterior cerebral artery (PCA): origin of all branches of the PCA from the anterior choroidal artery diagnosed by MR angiography

  • Akira UchinoEmail author
  • Tomoya Kamide
  • Hiroki Kurita
Anatomic Variations
  • 21 Downloads

Abstract

We present a rare variant of the right posterior cerebral artery (PCA), recently named “replaced PCA,” that demonstrates the origin of all its branches from the right anterior choroidal artery (AChA) on magnetic resonance (MR) angiography. In this variation, the right posterior communicating artery (PCoA) is hypoplastic and resembles the transposition of the AChA and PCoA. Detection of such rare arterial variations on MR angiographic images requires careful review of images, including source images, and partial maximum-intensity-projection images aid their identification.

Keywords

Anterior choroidal artery Cerebral arterial variation Magnetic resonance angiography Posterior cerebral artery Posterior communicating artery 

Notes

Acknowledgements

We thank Rosalyn Uhrig, M.A. for her editorial assistance in the preparation of this manuscript.

Author contributions

AU carried out the study design and drafting of the manuscript. AU, TK and HK performed data acquisition and made a critical review of the manuscript. All authors have read and approved the final manuscript.

Compliance with ethical standards

Conflict of interest

We declare that we have no conflict of interest.

References

  1. 1.
    Hara N, Koike T, Akiyama K, Toyama M (1989) Anomalous origin of anterior choroidal artery. Neuroradiology 31:88Google Scholar
  2. 2.
    Lasjaunias P, Berenstein A, ter Brugge KG (2001) The anterior choroidal artery. In: Lasjaunias P, Berenstein A, ter Brugge KG (eds) Surgical neuro-angiography, vol 1. Clinical vascular anatomy and variations, 2nd edn. Springer, Berlin, pp 563–575CrossRefGoogle Scholar
  3. 3.
    Morandi X, Brassier G, Darnault P, Mercier P, Scarabin JM, Duval JM (1996) Microsurgical anatomy of the anterior choroidal artery. Surg Radiol Anat 18:275–280CrossRefGoogle Scholar
  4. 4.
    Moyer DJ, Flamm ES (1992) Anomalous arrangement of the origins of the anterior choroidal and posterior communicating arteries. Case report. J Neurosurg 76:1017–1018CrossRefGoogle Scholar
  5. 5.
    Padget DH (1948) The development of the cranial arteries in the human embryo. Contrib Embryol 32:205–261Google Scholar
  6. 6.
    Takahashi M, Arii H, Tamakawa Y (1980) Anomalous arterial supply of temporal and occipital lobes by anterior choroidal artery: angiographic study. AJNR Am J Neuroradiol 1:537–540Google Scholar
  7. 7.
    Takahashi S, Suga T, Kawata Y, Sakamoto K (1990) Anterior choroidal artery: angiographic analysis of variations and anomalies. AJNR Am J Neuroradiol 11:719–729Google Scholar
  8. 8.
    Uchino A, Saito N, Takahashi M, Okano N, Tanisaka M (2016) Variations of the posterior cerebral artery diagnosed by MR angiography at 3 T. Neuroradiology 58:141–146CrossRefGoogle Scholar

Copyright information

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

Authors and Affiliations

  1. 1.Department of Diagnostic RadiologySaitama Medical University International Medical CenterHidakaJapan
  2. 2.Department of Cerebrovascular SurgerySaitama Medical University International Medical CenterSaitamaJapan

Personalised recommendations