Ashley McKnight(ORO-MEDONTE, Ontario) -- When Chloe McKnight was born 15 months ago, she had what looked like a slight scratch on her forehead, according to her mom, Ashley McKnight. As Chloe grew, the mark grew too, becoming more prominent and beginning to resemble a red stain on her forehead, according to McKnight, from Oro-Medonte, Ontario. At less than 2 months old, Chloe was diagnosed with a hemangioma, a noncancerous tumor made up of extra blood vessels, according to the American Academy of Pediatrics. Hemangiomas, sometimes known as baby birthmarks, are the most common benign tumors in ...