An enlarged nonfistulous artery mimicking an additional feeder in a pediatric pial arteriovenous fistula: an angiographic pitfall.

Authors

Sena Aksoy, Songül Şenadım, Arsida Bajrami, Serdar Geyik

Published in

Neuroradiology. Oct 20, 2026. Epub Oct 20, 2026.

Abstract

Pial arteriovenous fistulas (PAVFs) are rare high-flow vascular lesions requiring precise characterization of the fistulous angioarchitecture before treatment. We report a pediatric PAVF in which an enlarged artery adjacent to the fistula initially appeared suspicious for additional fistulous supply. Superselective angiography demonstrated normal cortical arterial arborization and parenchymal perfusion without early venous drainage, confirming that the enlarged vessel did not participate directly in the arteriovenous shunt. Selective coil embolization achieved complete immediate occlusion of the fistulous communication while preserving the adjacent normal cortical arterial supply. This case illustrates that arterial enlargement alone does not establish participation in a PAVF and highlights an angiographic pitfall relevant to treatment planning.

PMID:
42900393
Bibliographic data and abstract were imported from PubMed on 21 Oct 2026.

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