Imaging Workup of Dural Arteriovenous Fistula Presenting as Rapidly Progressive Dementia

A 76-year-old man with rapid cognitive decline, urinary incontinence, and seizures underwent noncontrast CT, multiphasic CTA, MRI, and DSA, revealing a dural arteriovenous fistula as a reversible cause—underscoring CT angiography's role in evaluating subacute neuropsychiatric sy…

• Single educational case report demonstrating stepwise imaging in a 76-year-old man with new-onset confusion, falls, and seizures.
• Initial noncontrast CT prompted multiphasic CTA, which suggested a vascular shunt; subsequent MRI and DSA confirmed a dural arteriovenous fistula (exact angiographic classification not detailed in snippet).
• Limitation: single retrospective case; generalizability of imaging findings and management to broader populations not established.

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