Print DiagnosisBecause you may not have symptoms with intracranial venous malformations, your health care provider might find that you have the condition during testing for other neurological problems. You might have these imaging tests to diagnose other neurological conditions: CT scan. A CT scan creates a series of X-rays to create detailed, cross-sectional images of your blood vessels and your brain. In some cases, dye is injected into a vein to assess the brain tissue or the blood vessels in greater detail (CT angiogram or CT venogram). MRI. Magnetic and radio waves create detailed 3D images of your blood vessels and brain. In some cases a contrast dye is injected into a vein to look at the brain tissue in a different way, and to evaluate your blood vessels. MRA. Magnetic resonance angiography is another type of MRI test that focuses on the arteries. An MRA shows how the blood flows through the blood vessels in the brain. MRV. Magnetic resonance venogram is a type of MRI that focuses on the veins. Care at Mayo Clinic Our caring team of Mayo Clinic experts can help you with your intracranial venous malformations-related health concerns Start Here TreatmentDoctors usually don't treat intracranial venous malformations because they rarely cause symptoms. If you have unrelated symptoms, such as headaches, your doctor might prescribe medications. Rarely, people who have intracranial venous malformations have seizures or bleeding in the brain (brain hemorrhage). These are usually caused by other vascular malformations that can be found with a venous malformation. Doctors typically treat seizures with medications. Some hemorrhages require surgery, but many hemorrhages can be treated with medical management and observation in a hospital.More InformationIntracranial venous malformations care at Mayo ClinicCraniotomy By Mayo Clinic Staff Intracranial venous malformations care at Mayo Clinic Request an appointment Symptoms & causesDoctors & departments Aug. 09, 2022 Print Show references 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. Singer RJ, et al. Vascular malformations of the central nervous system. https://www.uptodate.com/contents/search. Accessed June 24, 2022. 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. Chen KS, et al. Intracranial venous malformations: Incidence and characterization in a large pediatric cohort. Interventional Neuroradiology. 2021; doi:10.1177/1591019920943752. Lubicz B, et al. Endovascular treatment of intracranial venous malformations in children. Developmental Medicine & Child Neurology. 2020; doi:10.1111/dmcn.14589. Graff-Radford J (expert opinion). Mayo Clinic; June 24, 2022. Related Associated Procedures Craniotomy Products & Services A Book: Mayo Clinic Family Health Book Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Mayo Clinic in Rochester, Minnesota, Mayo Clinic in Phoenix/Scottsdale, Arizona, and Mayo Clinic in Jacksonville, Florida, have been ranked among the best Neurology & Neurosurgery hospitals in the nation for 2024-2025 by U.S. News & World Report. Learn more about this top honor Intracranial venous malformationsSymptoms&causesDiagnosis&treatmentDoctors&departmentsCare atMayoClinic Advertisement Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. Advertising & Sponsorship Policy Opportunities Ad Choices Mayo Clinic Press Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press. Mayo Clinic on Incontinence - Mayo Clinic PressMayo Clinic on IncontinenceThe Essential Diabetes Book - Mayo Clinic PressThe Essential Diabetes BookMayo Clinic on Hearing and Balance - Mayo Clinic PressMayo Clinic on Hearing and BalanceFREE Mayo Clinic Diet Assessment - Mayo Clinic PressFREE Mayo Clinic Diet AssessmentMayo Clinic Health Letter - FREE book - Mayo Clinic PressMayo Clinic Health Letter - FREE book CON-20313605 Patient Care & Health Information Diseases & Conditions Intracranial venous malformations