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Arteriovenous malformation - cerebral

  • Alternative Names

    AVM - cerebral


    In about half of patiens with AVMs, the first symptoms are those of a stroke caused by bleeding into the brain.

    Symptoms of an AVM that has not bled include:

    • Confusion
    • Ear noise/buzzing (also called pulsatile tinnitus)
    • Headache
      • May be in one area (localized) or the entire head
      • May resemble a migraine headache in some cases
    • Problems walking
    • Seizures of all types and severity
    • Symptoms caused by pressure on one area of the brain
      • Blurred, decreased, or double vision
      • Dizziness
      • Muscle weakness in any part of the body or face
      • Numbness in any part of the body

    Signs and tests

    A complete physical examination and neurologic examination are needed, but they may be completely normal.

    Tests that may be used to diagnose an AVM include:

    • Cerebral angiogram
    • Cranial MRI
    • Electroencephalogram (EEG)
    • Head CT scan
    • Magnetic resonance angiography (MRA)