Medical researchers do not know exactly what causes a brain AVM (arteriovenous malformation) to develop, but "there are a lot of theories," said Dr. Alexander Drofa, an endovascular neurosurgeon who ...

An angiogram is a diagnostic test that uses X-rays and a contrast dye to visualize the blood vessels in the body, including those in the brain. This test can help diagnose a brain aneurysm. An ...

A strange headache, a blur in vision, a moment of confusion, these can easily pass off as stress or general fatigue. But sometimes, they can hint at something more, something hidden in the blood ...