open access

Vol 81, No 3 (2022)
Original article
Submitted: 2021-03-25
Accepted: 2021-04-26
Published online: 2021-06-29
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Morphologic characterisation of the posterior inferior cerebellar artery. A direct anatomic study

L. E. Ballesteros-Acuña1, H. Y. Estupiñan12, F. A. Gómez-Torres1
·
Pubmed: 34219215
·
Folia Morphol 2022;81(3):559-566.
Affiliations
  1. Department of Basic Sciences, Medicine School, Universidad Industrial de Santander, Bucaramanga, Colombia
  2. Department of Laboratory Medicine, Clinical Research Centre, Karolinska Institute, Karolinska University Hospital Huddinge, Huddinge, Sweden

open access

Vol 81, No 3 (2022)
ORIGINAL ARTICLES
Submitted: 2021-03-25
Accepted: 2021-04-26
Published online: 2021-06-29

Abstract

Background: The number of studies on the cerebellar arteries has increased. The purpose of this study was to determine the morphological expression of posterior inferior cerebellar artery in a sample of Colombian population.
Materials and methods: One hundred eighty-six posterior inferior cerebellar arteries of fresh cadavers were studied. In each specimen, vertebral arteries were injected with 100 mL of semi-synthetic resin, dyed with mineral red.
Results: In the 93 blocks of brainstem and cerebellum evaluated, 174 (93.5%) posterior inferior cerebellar arteries were found. Also, there were 12 (6.5%) ageneses. There was single posterior inferior cerebellar artery in 159 (91.4%) samples and duplicate in 10 (5.7%), while 5 (2.9%) specimens showed hypoplasia. The posterior inferior cerebellar artery originated from the vertebral artery in 121 (69.5%) samples and from the basilar artery in 42 (24.1%) samples; while in 11 (6.4%) it originated in a common trunk with the anterior inferior cerebellar artery. In 101 (83.5%) cases, the posterior inferior cerebellar artery originated from the intracranial segment of the vertebral artery, while 20 (16.5%) samples originated from the extracranial segment. The calibres of posterior inferior cerebellar artery in its proximal and distal segments were 1.45 ± 0.37 mm and 1.33 ± 0.31 mm, respectively.
Conclusions: This study, carried out in cadaveric material, provides relevant qualitative and morphometric information of the posterior inferior cerebellar artery, useful for the diagnosis and clinical management, as well as for the surgical approaches that may compromise this structure.

Abstract

Background: The number of studies on the cerebellar arteries has increased. The purpose of this study was to determine the morphological expression of posterior inferior cerebellar artery in a sample of Colombian population.
Materials and methods: One hundred eighty-six posterior inferior cerebellar arteries of fresh cadavers were studied. In each specimen, vertebral arteries were injected with 100 mL of semi-synthetic resin, dyed with mineral red.
Results: In the 93 blocks of brainstem and cerebellum evaluated, 174 (93.5%) posterior inferior cerebellar arteries were found. Also, there were 12 (6.5%) ageneses. There was single posterior inferior cerebellar artery in 159 (91.4%) samples and duplicate in 10 (5.7%), while 5 (2.9%) specimens showed hypoplasia. The posterior inferior cerebellar artery originated from the vertebral artery in 121 (69.5%) samples and from the basilar artery in 42 (24.1%) samples; while in 11 (6.4%) it originated in a common trunk with the anterior inferior cerebellar artery. In 101 (83.5%) cases, the posterior inferior cerebellar artery originated from the intracranial segment of the vertebral artery, while 20 (16.5%) samples originated from the extracranial segment. The calibres of posterior inferior cerebellar artery in its proximal and distal segments were 1.45 ± 0.37 mm and 1.33 ± 0.31 mm, respectively.
Conclusions: This study, carried out in cadaveric material, provides relevant qualitative and morphometric information of the posterior inferior cerebellar artery, useful for the diagnosis and clinical management, as well as for the surgical approaches that may compromise this structure.

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Keywords

cerebellar irrigation, anatomical variation, hypoplasic agenesis, vertebro-basilar junction

About this article
Title

Morphologic characterisation of the posterior inferior cerebellar artery. A direct anatomic study

Journal

Folia Morphologica

Issue

Vol 81, No 3 (2022)

Article type

Original article

Pages

559-566

Published online

2021-06-29

Page views

4352

Article views/downloads

1416

DOI

10.5603/FM.a2021.0064

Pubmed

34219215

Bibliographic record

Folia Morphol 2022;81(3):559-566.

Keywords

cerebellar irrigation
anatomical variation
hypoplasic agenesis
vertebro-basilar junction

Authors

L. E. Ballesteros-Acuña
H. Y. Estupiñan
F. A. Gómez-Torres

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