My son is 3 years old, he woke up one morning with a goose egg size bruise and bump on his head. I took him to the dr. Repeatedly an they said it was a bruise. Finally I took him to a dermatologist an she said it was called a hemo... Something, she said it was swollen blood vessels under his skin, all in one spot. She never fully explained it, an it eats at me everyday, I need to know more about it, but can't find it on the Internet. I need to know if it will ever go away? Will he grow out of it? Please help me. My email is