American girl who made international news when her cognitive and physical growth stopped at the age of four. Doctor said her illness was unexplainable.
She had several medical emergencies, including seven perforated stomach ulcers and a seizure, before her sixth birthday.
At the time of her death, she had an estimated mental age of nine months. Her doctors called her condition Syndrome X.
She was born to parents Howard and Melanie Greenberg in Baltimore, Maryland. She had three sisters: Carly, Caitlin, and Emily.
Katie Couric interviewed her father on the talk show Katie.