颅内静脉畸形

概述

颅内静脉畸形是指脑部静脉大至异常。这些变大的静脉可能不会引起症状或影响静脉的工作方式。

有些人可能患有颅内静脉畸形，但从未得到诊断且从未引起症状。有时，颅内静脉畸形是在因其他状况进行脑成像检查时意外发现的。

颅内静脉畸形通常不需要治疗。

症状

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.

病因

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.

风险因素

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.