Common pattern and anatomical variants of the anterior portion of the arterial circle of the brain

Authors

  • Mayrelis Pacheco Mayedo Universidad de Ciencias Médicas Carlos J. Finlay
  • Mayda Estrella Durán Matos Universidad de Ciencias Médicas “Carlos J. Finlay”
  • Olga Lidia Cuba Yordi Universidad de Ciencias Médicas “Carlos J. Finlay”
  • Luisa Serrano González Universidad de Ciencias Médicas “Carlos J. Finlay
  • Yanil Rosales Almeida Universidad de Ciencias Médicas “Carlos J. Finlay
  • Johnny Loret de Mola Nicolau

Keywords:

círculo arterial del cerebro, variantes anatómicas, patrón común, arteria cerebral anterior, arteria comunicante anterior.

Abstract

Background: the brain is an organ that requires an uninterrupted supply of blood that is guaranteed by the circle of Willis.
Objective: to describe the common pattern and anatomical variants of the anterior portion of the circle of Willis.
Methods: a cross-sectional descriptive study was conducted in the department of Morphological Sciences at the University of Medical Sciences in Camagüey from December 2014 until May 2016. The universe was composed of 50 brains, which were washed with common water, and fixed in a 10 % formalin solution. Then a macroscopic dissection was performed. The variables studied were: origin, number, path and external diameter. Data were processed using the SPSS statistical package for Windows version 21.0, and descriptive statistics were applied. The results were presented in tables and images.
Results: the origin of the precommunicating segment of the anterior cerebral artery from the internal carotid artery, forward and inward to the interhemispheric fissure, and join at the one on both sides in front of the optic nerve through the anterior communicating artery, with variation in the path and in the external diameter, without numerical variants: the anterior communicating artery with variations in the path, number and external diameter.
Conclusions: the common pattern and anatomical variants of the anterior portion of the arterial circle of the brain were presented in equal proportion. The most observed anatomical variant was the duplication of the anterior communicating artery.
DeCS: ANTERIOR CEREBRAL ARTERY; CIRCLE OF WILLI; ANATOMIC VARIATION; DISSECTION; EPIDEMIOLOGY, DESCRIPTIVE.

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Author Biographies

Mayrelis Pacheco Mayedo, Universidad de Ciencias Médicas Carlos J. Finlay

Especialista de primer grado en MGI y en Anatomía Humana, profesora instructora, departamento de cuencias básicas biomédicas, grupo de ciencias morfológicas.

Mayda Estrella Durán Matos, Universidad de Ciencias Médicas “Carlos J. Finlay”

Especialista en Segundo Grado en Anatomía Humana. Máster en Investigación Educativa. Profesora Auxiliar y Consultante.

Olga Lidia Cuba Yordi, Universidad de Ciencias Médicas “Carlos J. Finlay”

Especialista en Segundo Grado en Anatomía Humana. Máster en Medicina Tradicional y Natural. Profesora Auxiliar.

Luisa Serrano González, Universidad de Ciencias Médicas “Carlos J. Finlay

Especialista en Primer Grado en MGI y Anatomía Humana. Profesora asistente

Yanil Rosales Almeida, Universidad de Ciencias Médicas “Carlos J. Finlay

Residente de cuarto año de Anatomía Umana. Profesor instructor

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Published

2017-11-28

How to Cite

1.
Pacheco Mayedo M, Durán Matos ME, Cuba Yordi OL, Serrano González L, Rosales Almeida Y, de Mola Nicolau JL. Common pattern and anatomical variants of the anterior portion of the arterial circle of the brain. Arch méd Camagüey [Internet]. 2017 Nov. 28 [cited 2025 Sep. 20];21(6):764-7. Available from: https://revistaamc.sld.cu/index.php/amc/article/view/5260

Issue

Vol. 21 No. 6 (2017)

Section

Original Articles

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