The doctor just diagnosed the mark on my daughter's breast as a hemangioma and told us not to worry about it. I had heard of hemangiomas in babies, stork bites... but never in adults. When I came home, I googled hemangioma but all I get is stuff about birthmarks. I even read somewhere that hemangiomas do not appear in adults. My daughter is 19, so I don't know what to think. Anybody here has more information on adult-onset hemangiomas? Thanks