Unilateral Çift Arteria Superior Cerebelli Varyasyonu: Bir Kadavra Vaka Raporu

Abstract

Arteria superior cerebelli (ASC), beyin sapının önünde bulunan bir damar olup genellikle arteria basilaris (AB)’ten köken alır. Bu olguda 74 yaşındaki erkek bir kadavrada sol ASC’nin farklı seyri bildirilmektedir. ASC’nin kökeninin sol tarafta pons’un ön yüzünde unilateral çift kök halinde olduğu tespit edildi. Köklerin başlangıç noktalarının bifurcatio basilaris’e olan uzaklıkları sağ tarafta 31,09 mm, sol tarafta üst kök 33,84 mm ve alt kök 30,95 mm idi. Sağ ASC çapı 2,37 mm, sol üst kökün çapı 2,05 mm ve alt kökün çapı ise 1,24 mm idi. ASC’nin seyrinin ve özellikle morfolojik varyasyonların bilinmesi, cerrahi operasyonlar sırasında komplikasyonların önlenmesinde, anjiografik tetkiklerin değerlendirilmesinde ve nörovasküler hastalıkların teşhis ve tedavisinde klinik branşlara faydalı olacaktır.

Keywords

• Anatomi
• duplikasyon
• arteria superior cerebelli
• varyasyon
• kadavra

Unilateral Double Superior Cerebellar Artery Variation: A Cadaveric Case Report

Abstract

The superior cerebellar artery (SCA) is a vessel anterior to the brainstem, usually originating from the basilar artery (BA). In this case, a different course of left SCA in a 74-year-old male cadaver was reported. The origin of the SCA was found to be a unilateral double root at the left side on the anterior surface of the pons. The distances of the starting points of roots to the bifurcation of BA were 31.09 mm on the right side, on the left side the rostral root was 33.84 mm and the caudal root was 30.95 mm. The diameter of the right SCA was 2.37 mm, the left rostral root was 2.05 mm and the caudal root was 1.24 mm. Knowing the course of SCA, and especially morphological variations, will be helpful for the clinical branches in preventing complications during surgical operations, evaluating angiographic examinations, and diagnosing and treating neurovascular diseases.

Keywords

• Anatomy,
• duplication
• superior cerebellar artery
• variation
• cadaver

References

1. Arifoğlu Y, Gezen F, Gönül C, Sevinç Ö, İş M. The case of unilateral double superior cerebellar artery. Duzce Med J. 2002;4(3):26-7.
2. Arıncı K, Elhan A. Anatomy. 2nd ed. Ankara: Güneş Tıp Kitabevleri; 2020. Turkish.
3. Davidoiu AM, Lazăr M, Vrapciu AD, Rădoi PM, Toader C, Rusu MC. An update on the superior cerebellar artery origin type. Medicina (Kaunas). 2023;59(12):2164.
4. Seçkin H, Çıkla U, Avcı E. Microsurgical anatomy of vertebrobasilar system aneurysms. Türk Nöroşir Derg. 2018;28(1):22-9. Turkish.
5. Macdonald RL, Cogen PH, Weir B. Midline vascular lesions. Contemp Neurosurg. 1994;16(24):1-7.
6. Dagcinar A, Kaya AH, Aydin ME, Kopuz C, Senel A, Demir MT, et al. The superior cerebellar artery: anatomic study with review. Neurosurg Quart. 2007;17(3):235-40.
7. Gray H, Standring S, Ellis H, Collins P, Berkovitz BKB, Wigley C. Gray's anatomy: the anatomical basis of clinical practice. 39th ed. Edinburgh: Elsevier Churchill Livingstone; 2005.
8. Karabulut AK, Çiçekbaşı AE, Salbacak A, Üstün ME. Bilateral duplication of the superior cerebellar artery. Selcuk Med J. 2001;17(2):123-6.

9. Ballesteros-Acuña LE, Estupiñan HY, Gómez-Torres FA. Morphologic characterisation of the posterior inferior cerebellar artery. A direct anatomic study. Folia Morphol (Warsz). 2022;81(3):559-66.
10. Kalaiyarasi S, Chitra PS. A study of variations in the origin of superior cerebellar artery and the dimensions of its proximal segment. Int J Anat Res. 2018;6(1):4849-53.
11. Matsuda M, Endo H, Ishikawa K, Nomura R, Ishizuka T, Oka K, et al. Extremely tortuous superior cerebellar artery mimicking an aneurysm. Surg Neurol Int. 2021;12:569.
12. Malicki M, Szmyd BM, Bobeff EJ, Karuga FF, Piotrowski MM, Kościołek D, et al. The superior cerebellar artery: variability and clinical significance. Biomedicines. 2023;11(7):2009.
13. Goodhart SP, Davison C. Syndrome of the posterior inferior and anterior inferior cerebellar arteries and their branches. Arch Neur Psyc. 1936;35(3):501-24.
14. Hardy DG, Peace DA, Rhoton AL Jr. Microsurgical anatomy of the superior cerebellar artery. Neurosurgery. 1980;6(1):10-28.
15. Hardy DG, Rhoton AL Jr. Microsurgical relationships of the superior cerebellar artery and the trigeminal nerve. J Neurosurg. 1978;49(5):669-78.
16. Uchino A, Sawada A, Takase Y, Kudo S. Variations of the superior cerebellar artery: MR angiographic demonstration. Radiat Med. 2003;21(6):235-8.
17. Caruso G, Vincentelli F, Rabehanta P, Giudicelli G, Grisoli F. Anomalies of the P1 segment of the posterior cerebral artery: early bifurcation or duplication, fenestration, common trunk with the superior cerebellar artery. Acta Neurochir (Wien). 1991;109(1-2):66-71.
18. Mani RL, Newton TH, Glickman MG. The superior cerebellar artery: an anatomic-roentgenographic correlation. Radiology. 1968;91(6):1102-8.
19. Avcı E, Fossett D, Aslan M, Attar A, Egemen N. Surgical anatomy of the superior cerebellar artery. Turk Neurosurg. 2001;11(3-4):95-100.