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A Case of Anterior Cranial Fossa Dural Arteriovenous Fistula Involving Uncontrolled Seizures Diagnosed Based on Characteristic Findings on Arterial Spin-labeling Imaging Mitsuru TAMURA 1 , Kiyotaka SAITO 1 , Go IRISA 1 , Hajime OHTA 1 , Kiyotaka YOKOGAMI 1 , Katsuya SAKAI 2 , Hideo TAKESHIMA 1 1Department of Neurosurgery, Division of Clinical Neuroscience, Faculty of Medicine, University of Miyazaki 2Neurology, Respirology, Endocrinology and Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki Keyword: anterior cranial fossa dural arteriovenous fistula , arterial spin-labeling imaging , epilepsy , time of flight-MRA , TOF-MRA pp.547-552
Published Date 2020/6/10
DOI https://doi.org/10.11477/mf.1436204226

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  • Abstract
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 We report a case of anterior cranial fossa dural arteriovenous fistula(ACF-DAVF)in a patient whose diagnosis was made according to characteristic findings on arterial spin labeling(ASL)MRI.

 CASE:A 68-year-old man was admitted to our hospital because of intractable epilepsy. Based on the initial MRI findings, an initial diagnosis of limbic encephalitis was made. Steroids and anticonvulsant drugs were administered;however, the seizures could not be controlled. A second MRI with ASL revealed abnormal vessel signals in the base segments of the left frontal and temporal lobes toward the basal vein of Rosenthal. Digital subtraction angiography(DSA)revealed an arteriovenous shunt in the left anterior cranial fossa, which drained toward the medial side of the left temporal lobe. A diagnosis of ACF-DAVF with status epilepticus was made, and the main drainer was cauterized. After the surgical procedure, the epilepsy was controlled with antiepileptic drugs, and postoperative MRI revealed obliteration of ACF-DAVF, disappearance of the high-intensity area on FLAIR sequences, and disappearance of the high-intensity signal area on ASL.


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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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