A Rare Case of Subarachnoid Hemorrhage caused by Ruptured Venous Varix Due to Dural Arteriovenous Fistula at the Foramen Magnum Fed Solely by the Ascending Pharyngeal Artery

Dural arteriovenous fistula (D-AVF) at the foramen magnum is an extremely rare disease entity. It produces venous hypertension, and can lead to progressive cervical myelopathy thereafter. On the other hand, the venous hypertension may lead to formation of a venous varix, and it can rarely result in...

Full description

Saved in:
Bibliographic Details
Published in:Journal of cerebrovascular and endovascular neurosurgery Vol. 20; no. 2; p. 120
Main Authors: Kim, Hyunjun, Lee, Yoon-Soo, Kang, Ho-Jun, Lee, Min-Seok, Suh, Sang-Jun, Lee, Jeong-Ho, Kang, Dong-Gee
Format: Journal Article
Language:English
Published: Korea (South) 01.06.2018
Subjects:
Foramen magnum
Embolization
Ascending pharyngeal artery
Subarachnoid hemorrhage
Dural arteriovenous fistula
ISSN:2234-8565
Online Access:Get more information
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Dural arteriovenous fistula (D-AVF) at the foramen magnum is an extremely rare disease entity. It produces venous hypertension, and can lead to progressive cervical myelopathy thereafter. On the other hand, the venous hypertension may lead to formation of a venous varix, and it can rarely result in an abrupt onset of subarachnoid hemorrhage (SAH) when the venous varix is ruptured. The diagnosis of D-AVF at the foramen magnum as a cause of SAH may be difficult due to its low incidence. Furthermore, when the D-AVF is fed solely by the ascending pharyngeal artery (APA), it may be missed if the external carotid angiography is not performed. The outcome could be fatal if the fistula is unrecognized. Herein, we report on a rare case of SAH caused by ruptured venous varix due to D-AVF at the foramen magnum fed solely by the APA. A review of relevant literatures is provided, and the treatment modalities and outcomes are also discussed.
Bibliography:ObjectType-Case Study-2
SourceType-Scholarly Journals-1
ObjectType-Feature-4
content type line 23
ObjectType-Report-1
ObjectType-Article-3
ISSN:2234-8565
DOI:10.7461/jcen.2018.20.2.120