Area 14-year-old Brianna Angelos, who was the Cerebral Palsy Foundation's official Cerebral Palsy poster child in 1992, has developed into a gangly, awkward Cerebral Palsy teen, sources revealed Tuesday. 'Nobody's asked Brianna to be on any posters for a long while now,' said Karen Angelos, mother of the ungainly adolescent. 'In fact, I don't think she's done a public appearance in over five years.' Brianna's classmates at Westlake High School describe the teen as 'introverted and unpopular.' 