Arteriovenous malformations history and symptoms

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Kalsang Dolma, M.B.B.S.[2]

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Overview

Symptoms of AVM vary according to the location of the malformation. Roughly (88% -needs citation) AVM are asymptomatic; often the malformation is discovered as part of an autopsy or during treatment of an unrelated disorder (called in medicine an incidental finding), rarely its expansion or a micro-bleed from it, could cause epilepsy, deficit or elicit pain.

Symptoms

The most general symptoms include

• Headache
• Epilepsy,
• Difficulties with movement or coordination, including muscle weakness and even paralysis;
• Vertigo (dizziness);
• Difficulties of speech (dysarthria) and communication, such as alogia;
• Difficulties with everyday activities, such as apraxia;
• Abnormal sensations (numbness, tingling, or spontaneous pain);
• Memory and thought-related problems, such as confusion, dementia or hallucinations.