Olivia Klopchin shares more about the condition in a video that's been viewed more than 16 million times, saying that it's ...

An AVM is an abnormal tangle of arteries and veins, often found in the brain, that disrupts normal blood flow Tricia Despres is a writer for PEOPLE digital, covering everything from country music ...

Cavernous malformations, also known as "cavernous angiomas," "cavernous hemangiomas" or just "cavernomas" are clusters of tightly packed abnormal blood vessels surrounded by normal brain tissue.