Arteriovenous Malformation (AVM)
Arteriovenous Malformation (AVM) is an abnormal connection between blood vessels. It happens when arteries connect directly to veins without first sending blood through tiny capillaries. An AVM can look like a tangle of blood vessels. They form anywhere on your body, but most often form in or around the brain and along the spinal cord. AVMs are diagnosed primarily by a CT scan or MRI, and are treated by neurosurgeons through methods including endovascular embolization and gamma knife stereotactic radiosurgery. Treatment for brain AVMs can be symptomatic, and patients should be followed by a neurologist for any seizures, headaches, or focal neurologic deficits.