I'm curious as to what can you tell me about cerebral avm's?

Congenital: Cerebral avms are a "tangle" of arteries and veins that a person is born with. These can present with associated neurologic symptoms (weakness) or seizures. There is about a 3% risk of bleeding per year that is cumulative. Treatment can be multimodality and includes embolization, surgery and radiation. The risks of treatment depend on size and location of the avm.