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CC BY-NC-ND 4.0 · Asian J Neurosurg 2021; 16(02): 423-430
DOI: 10.4103/ajns.AJNS_528_20
Case Report

Filum terminale arteriovenous fistula with additional arterial supply by the posterior spinal artery: A report of two cases

Prasert Iampreechakul
Department of Neurosurgery, Prasat Neurological Institute, Bangkok
,
Naruedol Yaisarn
Department of Neurosurgery, Prasat Neurological Institute, Bangkok
,
Korrapakc Wangtanaphat
Department of Neurosurgery, Prasat Neurological Institute, Bangkok
,
Punjama Lertbutsayanukul
1   Department of Neuroradiology, Prasat Neurological Institute, Bangkok
,
Somkiet Siriwimonmas
2   Department of Radiology, Bumrungrad International Hospital, Bangkok
,
Nawaporn Techataweewan
3   Department of Anatomy, Faculty of Medicine, Khon Kaen University, Bangkok
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Filum terminale arteriovenous fistulas (FTAVFs) are rare and usually supplied by the artery of the filum terminale, distal termination of the anterior spinal artery (ASA). These fistulas may also supply from the lateral sacral artery (LSA) arising from the internal iliac artery and/or middle sacral artery. Additional supply by the posterior spinal artery (PSA) has never been mentioned before. The authors describe two middle-aged men harboring FTAVFs manifested with progressive myelopathy and bowel/bladder dysfunction. The first fistula was supplied by the ASA with additional supply by the dilated PSA connecting with the ASA. Another fistula was supplied by the LSA and the PSA communicating with the ASA. The first case was successfully treated by endovascular treatment with N-butyl cyanoacrylate through the enlarged PSA, whereas the second case was surgically treated by direct obliteration of the fistula. Both patients had good neurological outcome.

Key-words:

Anterior spinal artery - filum terminale arteriovenous fistula - posterior spinal artery - the arterial basket of the conus medullaris

Financial support and sponsorship

Nil.




Publication History

Received: 06 December 2020

Accepted: 26 January 2021

Article published online:
16 August 2022

© 2021. Asian Congress of Neurological Surgeons. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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