Intracranial venous malformations are veins in the brain that are unusually large. These larger veins aren't likely to cause symptoms or affect how the veins work.

Some people may have an intracranial venous malformation that is never diagnosed and never causes symptoms. Sometimes, they're found by accident when you have a brain imaging test for another condition.

Intracranial venous malformations usually don't require treatment.

Intracranial venous malformations care at Mayo Clinic

Aug. 09, 2022
  1. Arteriovenous malformations and other vascular lesions of the central nervous system fact sheet. National Institute of Neurological Disorders and Stroke. https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Fact-Sheets/Arteriovenous-Malformation-Fact-Sheet. Accessed June 24, 2022.
  2. Singer RJ, et al. Vascular malformations of the central nervous system. https://www.uptodate.com/contents/search. Accessed June 24, 2022.
  3. Vascular malformations of the brain. National Organization of Rare Diseases. https://rarediseases.org/rare-diseases/vascular-malformations-of-the-brain/#:~:text=Vascular%20malformations%20of%20the%20brain%20may%20cause%20headaches%2C%20seizures%2C%20strokes,and%20progression%20of%20the%20disease. June 24, 2022.
  4. Chen KS, et al. Intracranial venous malformations: Incidence and characterization in a large pediatric cohort. Interventional Neuroradiology. 2021; doi:10.1177/1591019920943752.
  5. Lubicz B, et al. Endovascular treatment of intracranial venous malformations in children. Developmental Medicine & Child Neurology. 2020; doi:10.1111/dmcn.14589.
  6. Graff-Radford J (expert opinion). Mayo Clinic; June 24, 2022.


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