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vein of Galen aneurysm

The information provided on this page is for informational purposes only. The National Organization for Rare Disorders (NORD) does not endorse the information presented. The content has been gathered in partnership with the MONDO Disease Ontology. Please consult with a healthcare professional for medical advice and treatment.

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Disease Overview

Vein of Galen aneurysm is a rare formof arteriovenous malformation in which the embryonic precursor to the vein of Galen, a vein at the base of the brain, dilates causing too much blood to rush to the heart. This can lead to rapid heart failure. Other features may include increased head circumference resulting from hydrocephalus, unusually prominent veins on the face and scalp, developmental delay, persistent headache, and other neurological findings. Vein of Galen aneurysm is often recognized on an ultrasound late in pregnancy. In other cases, it is diagnosed after birth. Although the exact cause remains unknown, this condition appears to result from a defect in early fetal development. Treatment is aimed at decreasing the blood flow through the malformation while maximizing the blood supply to the brain. Minimally invasive surgical techniques are preferred, such as endovascular embolization.

Synonyms

  • Galen vein aneurysm
  • Galenic arteriovenous malformation
  • VGAM
  • ectasia or varix of the vein of Galen
  • vein of Galen aneurysm malformation
  • vein of Galen arteriovenous malformations
GARD Disease Summary

The Genetic and Rare Diseases Information Center (GARD) has information and resources for patients, caregivers, and families that may be helpful before and after diagnosis of this condition. GARD is a program of the National Center for Advancing Translational Sciences (NCATS), part of the National Institutes of Health (NIH).

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Orphanet

Orphanet has a summary about this condition that may include information on the diagnosis, care, and treatment as well as other resources. Some of the information and resources are available in languages other than English. The summary may include medical terms, so we encourage you to share and discuss this information with your doctor. Orphanet is the French National Institute for Health and Medical Research and the Health Programme of the European Union.

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