The caput medusae sign.
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Department of Radiology, Mercy Hospital of Pittsburgh, PA 15219, USA.
D002550:Cerebral Veins / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis*; D018810:Magnetic Resonance Angiography; D014057:Tomography, X-Ray Computed