Malformaciones venosas intracraneales

Descripción general

Las malformaciones venosas intracraneales son venas del cerebro que son anormalmente grandes. Estas venas más grandes no suelen causar síntomas ni afectar el funcionamiento de las venas.

Algunas personas pueden tener una malformación venosa intracraneal que nunca se diagnostica ni provoca síntomas. A veces, se detecta por accidente cuando te realizas una prueba por imágenes del cerebro para detectar otra afección.

Las malformaciones venosas intracraneales, por lo general, no requieren tratamiento.

Síntomas

Intracranial venous malformations may never cause symptoms. They are sometimes found by accident during brain imaging tests for another condition. If an intracranial venous malformation does cause symptoms, they may include:

• Headaches.
• Seizures.
• Dizziness.
• Nausea and vomiting.
• Muscle weakness or paralysis.
• Loss of coordination.
• Vision troubles.
• Difficulty speaking.
• Memory problems.

When to see a doctor

Seek medical attention if you have any of the symptoms of an intracranial venous malformation.

Causas

Experts don't understand what causes intracranial venous malformations. Certain genetic changes might play a role, and the malformations may happen during fetal development. However, some types may not be inherited and are acquired later in life, possibly after an injury to the central nervous system.

Factores de riesgo

Having a family history of intracranial venous malformations can increase your risk. But most types aren't inherited.

Certain hereditary conditions can increase your risk of intracranial venous malformations. These include hereditary hemorrhagic telangiectasia, Sturge-Weber syndrome and Klippel-Trenaunay syndrome.