• World Neurosurg · Aug 2016

    Dural Arteriovenous Fistula Mimicking a Supratentorial Tumor.

    • Johannes Goldberg, Jürgen Beck, and David Bervini.
    • Department of Neurosurgery, Bern University Hospital and University of Bern, Bern, Switzerland. Electronic address: johannes.goldberg@insel.ch.
    • World Neurosurg. 2016 Aug 1; 92: 585.e1-3.

    BackgroundThe pathophysiology of dural arteriovenous fistulas (dAVF) is not fully understood. Retrograde venous flow can lead to venous congestion and disruption of the blood-brain barrier, resulting in diffuse contrast enhancement.Case DescriptionWe present the case of a patient with a supratentorial dAVF associated with a solid, tumor-appearing, corticosubcortical contrast-enhancing lesion. Surgical occlusion of the dAVF was followed by complete regression of the contrast-enhancing lesion. Histologic analysis of the lesion showed normal brain tissue.ConclusionsThis case report highlights how venous congestion is an important differential diagnosis in contrast-enhancing lesions associated with dAVF and how it should be taken in consideration to avoid radiologic misdiagnoses and unnecessary treatment.Copyright © 2016 Elsevier Inc. All rights reserved.

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