Dural arteriovenous fistula after craniotomy for pilocytic astrocytoma in a patient with protein S deficiency

ArticleinSurgical Neurology 58(1):59-64; discussion 64 · August 2002with7 Reads
Impact Factor: 1.67 · DOI: 10.1016/S0090-3019(02)00730-9 · Source: PubMed

    Abstract

    We report an unusual case, which may provide insight into the etiology and pathogenesis of dural arteriovenous malformation.
    A 24-year-old woman presented with hemorrhage into a pilocytic astrocytoma of the collicular plate. Angiography was normal and the tumor was surgically resected. She developed sigmoid sinus thrombosis and a transverse/sigmoid sinus dural arteriovenous fistula 11 months after this and was found to have protein S deficiency. The fistula was not treated. Angiography 4 years later was unchanged.
    This report illustrates an acquired etiology of a dural arteriovenous fistula. To our knowledge this is the first reported case of postoperative sigmoid sinus thrombosis along with arteriovenous fistula in a patient with previously undetected protein S deficiency.