• Internal medicine · Feb 2024

    Review Case Reports

    Dural Arteriovenous Fistula Mimicking Acute Encephalitis: A Case Report.

    • Hiroyasu Inoue, Yusuke Nishikawa, Masahiro Oomura, Hiroyuki Maki, Takatsune Kawaguchi, Mitsuhito Mase, and Noriyuki Matsukawa.
    • Department of Neurology, Nagoya City University Graduate School of Medical Sciences, Japan.
    • Intern. Med. 2024 Feb 1; 63 (3): 451455451-455.

    AbstractWe herein report a case of acute neurological symptoms and a fever initially suspected of being encephalitis but later revealed to be dural arteriovenous fistula (dAVF). An 84-year-old woman had a fever and cerebral edema and was initially treated for encephalitis. A review of her magnetic resonance imaging findings revealed abnormal blood flow signals. After cerebral angiography, the patient was finally diagnosed with left transverse-sigmoid sinus dAVF. The present case showed that dAVF can also present with an acute onset and a fever, mimicking acute encephalitis. Because the treatments for encephalitis and dAVF differ greatly, the possibility of dAVF should also be considered when diagnosing encephalitis.

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