Conservative Management for an Infratentorial Pial Arteriovenous Fistula in an Elderly Patient: A Case Report

Paula Eboli, Daniel Chang, Robin Babadjouni


Pial arteriovenous fistulas (pAVFs) are rare vascular malformations requiring intervention in neonates and infants, but the natural course in the elderly population remains unclear. We describe the case of a 78-year-old man with transient symptoms of vertigo and diplopia. Workup including magnetic resonance imaging (MRI) and computed tomography angiography (CTA) demonstrated no acute infarct or hemorrhage to explain the symptoms, but a vascular lesion was noted in the right cerebellum. Digital subtraction angiography confirmed the diagnosis of a pAVF. After review of the literature and discussion with the patient, conservative monitoring with serial imaging was elected. The patient was followed up with repeat CTA which demonstrated stable findings, and the patient remained at his neurologic baseline on long-term follow-up. pAVFs are often symptomatic lesions when found in neonates and infants, necessitating intervention. The findings of these lesions in the elderly (> 70 years of age) are exceedingly rare in the literature and may follow a benign natural course. Without direct evidence of associated symptoms or pathologic findings, conservative management with serial imaging may be a reasonable option for incidentally found pAVFs.

J Neurol Res. 2022;12(3):128-131


Pial arteriovenous fistula; Vascular malformations; Endovascular treatment; Surgical treatment

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