Differential distribution patterns in cerebellar irrigation. A study with autopsy material

  • Hernando Yesid Estupiñan Universidad Industrial de Santander
  • Fabian Alejandro Gomez Universidad Industrial de Santander
  • Luis Ernesto Ballesteros Universidad Industrial de Santander


Aim: The aim of this investigation was characterize morphologically the cerebellar artery and its branches in a specimen of autopsy material.

Methods: This descriptive cross-sectional study evaluated the anatomical characteristics of the cerebellar arteries and their branches in 93 brain stem and cerebellum blocks obtained from fresh cadavers. The specimens were perfused bilaterally channeling the proximal segments of the internal carotid and vertebral arteries with a semi-synthetic resin (Palatal GP40L 85%; styrene 15%) impregnated with mineral red dye. We evaluated the distribution patterns of the cerebellar artery and its branches.

Results: The calibers of the superior cerebellar artery (SCA), anterior inferior cerebellar artery (AICA) and posterior inferior cerebellar artery (PICA) were 1.46 ± 0.2 mm, 1.02 ± 0.35 mm and 1.45 ± 0.37 mm, respectively. Agenesis of the SCA was observed in six specimens (3.2%), AICA in 30 (16.1%), and PICA in 14 (7.5%) specimens. Usual irrigation was observed in 44 (47.3%) cerebellar blocks, whereas 49 (52.7%) specimens showed irrigation variants, 23 (46.9%) of which appeared bilaterally. The dominant distribution of the cerebellar arteries corresponded to SCA in 9 (12.5%) cases, AICA in 46 (63.9%) and PICA in 7 (9.7%) specimens; shared dominance was found in 10 (13.9%) specimens.

Conclusion: The high variability of the cerebellar arteries observed in the present study is consistent with previous reports. The diverse anatomic expressions of the cerebellar arteries were typified in relation to their dominance and territories irrigated, useful for the diagnosis and clinical-surgical management of the cerebellum blood supply.

Author Biographies

Hernando Yesid Estupiñan, Universidad Industrial de Santander

Departamento de Ciencias Básicas, Escuela de Medicina, Universidad Industrial de Santander. Bucaramanga, Colombia. Cra. 32 # 29-31.

Luis Ernesto Ballesteros, Universidad Industrial de Santander

Departamento de Ciencias Básicas, Escuela de Medicina, Universidad Industrial de Santander. Bucaramanga, Colombia. Cra. 32 # 29-31.


1. Akgun V, Battal B, Bozkurt Y, Oz O, Hamcan S, Sari S, et al. Normal anatomical features and variations of the vertebrobasilar circulation and its branches: an analysis with 64-detector row CT and 3T MR angiographies. The Scientific World Journal Volume. 2013: 1-7. Available from: www.hindawi.com/journals/tswj/2013/620162/
2. Amarenco P, Hauw JJ. Anatomy of the cerebellar arteries. Rev neurol. 1989;145:267-276. Available from: www.ncbi.nlm.nih.gov/pubmed/2535662
3. Atkinson WJ. The anterior inferior cerebellar artery its variations, pontine distribution, and significance in the surgery of cerebello-pontline angle tumours. J Neurol Neurosurg Psychiat. 1949;12: 137-151. Available from: www.ncbi.nlm.nih.gov/pubmed/18127084
4. Dodevski A, Lazarova DT, Zhivadinovik J, Lazareska M, Stojopvska-Jovanovska E. Morphological characteristics of the superior cerebellar artery. Prilozi. 2015;36:79-83. Available from: www.ncbi.nlm.nih.gov/pubmed/26076777
5. Habibi Z, Meybodi AT, Maleki F, Tabatabai S. Superior and anterior inferior cerebellar arteries and their relationship with cerebello-pontine angle cranial nerves revisited in the light of cranial cephalometric indexes: a cadaveric study. Turkish Neurosurgery. 2011;21:504-515. Available from: www.ncbi.nlm.nih.gov/pubmed/22194108
6. Kase CS, Norrving B, Levine SR, Babikian VL, Chodosh EH, Wolf PA, et al. Cerebellar infarction. Clinical and anatomic observations in 66 cases. Stroke. 1993;24:76-83. Available from: www.ncbi.nlm.nih.gov/pubmed/8418555
7. Kawashima M, Rhoton AL Jr, Tanriover N, Ulm AJ, Yasuda A, Fuji K. Microsurgical anatomy of cerebral revascularization. Part II: posterior circulation. J Neurosurg. 2005;102:132–147. Available from: www.ncbi.nlm.nih.gov/pubmed/15658105
8. Kayaci S, Caglar YS, Bas O, Ozveren MF. Importance of the perforating arteries in the proximal part of the PICA for surgical approaches to the brain stem and fourth ventricle - an anatomical study. Clinical Neurology and Neurosurgery. 2013;115:2153–2158. Available from: www.ncbi.nlm.nih.gov/pubmed/24012273
9. Kim HA, Yi HA, Lee H. Recent Advances in Cerebellar Ischemic Stroke Syndromes Causing Vertigo and Hearing Loss. Cerebellum. 2016;15:781-788. Available from: www.ncbi.nlm.nih.gov/pubmed/26573627
10. Lee H, Kim JS, Chung EJ, Yi HA, Chung IS, Lee SR, et al. Infarction in the territory of anterior inferior cerebellar artery. Spectrum of audiovestibular loss. Stroke. 2009;40:3745-3751. Available from: www.ncbi.nlm.nih.gov/pubmed/19797177
11. Lee H. Audiovestibular loss in anterior inferior cerebellar artery territory infarction: a window to early detection? J Neurol Sci. 2012;313:153-159. Available from: www.ncbi.nlm.nih.gov/pubmed/21996273
12. Lister JR, Rhoton AL Jr, Matsushima T, Peace DA. Microsurgical anatomy of the posterior inferior cerebellar artery. Neurosurgery. 1982;10:170-199. Available from: www.ncbi.nlm.nih.gov/pubmed/7070615
13. Min WK, Kim YS, Kim JY, Park SP, Suh CK. Atherothrombotic cerebellar infarction vascular lesion–MRI correlation of 31 cases. Stroke. 1999;30:2376-2381. Available from: www.ncbi.nlm.nih.gov/pubmed/10548674
14. Murakami T, Nakayasu H, Doi M, Fukada Y, Hayashi M, Suzuki T, et al. Anterior and posterior inferior cerebellar artery infarction with sudden deafness and vertigo. J Clin Neurosci. 2006;13:1051-1054 . Available from: www.sciencedirect.com/science/article/pii/S0967586806004851
15. Pai BS, Varma RG, Kulkarni RN, Nirmal S, Manjunath LC, Rakshith S. Microsurgical anatomy of the posterior circulation. Nuerology India. 2007;55:31-41. Available from: www.ncbi.nlm.nih.gov/pubmed/17272897
16. Pekcevik Y, Pekcevik R. Variations of the cerebellar arteries at CT angiography. Surg Radiol Anat. 2014;36:455-461. Available from: www.ncbi.nlm.nih.gov/pubmed/24061702
17. Rhoton AL Jr. The Cerebellar Arteries. Neurosurgery. 2000;47:S29-S68. Available from: www.ncbi.nlm.nih.gov/pubmed/10983304
18. Saylam C, Ucerler H, Orhan M, Cagli S, Zileli M. The relationship of the posterior inferior cerebellar artery to cranial nerves VII–XII. Clinical Anatomy. 2007;20:886–891. Available from: www.ncbi.nlm.nih.gov/pubmed/17907205
19. Venti M. Cerebellar infarcts and hemorrhages. Front Neurol. 2011;30:171-175. Available from: www.ncbi.nlm.nih.gov/pubmed/22377889
20. Wollschlaeger G, Wollschlaeger PB, Lucas FV, Lopez VF. Experience and result with postmortem cerebral angiography performed as routine procedure of the autopsy. Am J Roentgenol Radium Ther Nucl Med. 1967;101:68–87. Available from: www.ncbi.nlm.nih.gov/pubmed/6037344
How to Cite
ESTUPIÑAN, Hernando Yesid; GOMEZ, Fabian Alejandro; BALLESTEROS, Luis Ernesto. Differential distribution patterns in cerebellar irrigation. A study with autopsy material. International Archives of Medicine, [S.l.], v. 11, feb. 2018. ISSN 1755-7682. Available at: <http://imedicalsociety.org/ojs/index.php/iam/article/view/2767>. Date accessed: 23 mar. 2018. doi: https://doi.org/10.3823/2554.
Human Anatomy