Ever heard of Cavernoma? Rare as AVM already is, cavernoma is an even rarer type of AVM which occurs in the brain.
Yahoo! ran an article about a girl, Keira Vidikan, 6, who was diagnosed with the condition. At first, doctors thought she had an aggressive type of brain tumor when she was taken to a hospital after having a major headache.
Follow this story which made it to Yahoo!'s main news feed.