Patient's question:
I discovered a very small venous vascular malformation on my forehead during a health check-up two years ago, which I believe was congenital. At the time, there wasn't much of an issue, so I didn't pay much attention. Now, I occasionally experience dizziness, and I wonder if it's related to my vascular malformation. I want to know how serious it is and whether it should be treated. Is a vascular malformation serious?Doctor's answer:
Vascular malformations are primarily feared for their potential to cause brain hemorrhage. When vascular malformations are not active, they are often undetectable unless a cerebral angiography is performed. Therefore, before an episode occurs, it is rare to obtain a definitive diagnosis. Due to the abnormality, normal blood vessels develop weak points. When a person experiences emotional excitement or other stimuli that cause a drop in blood pressure, the affected blood vessels cannot withstand the sudden decrease in pressure and rupture, or "tear." At this point, the patient may experience severe headaches, dizziness, or other symptoms, prompting them to seek follow-up care. If the rupture is minor and medical attention is sought promptly, treatment is still possible. Otherwise, there is a risk of life-threatening complications or the patient may ultimately become a vegetable.