Genetic-based tests help doctors tailor treatment for kids with brain tumours
TORONTO — At eight years old, Julia Van Damme was like most other kids her age — going to school, playing sports and goofing around with her younger sister and older brother. But a routine eye exam turned up a baffling and unexpected finding — she was virtually blind in one eye.
An MRI showed Julia had a golf ball-sized tumour in her brain, and the pressure it was exerting on her optic nerve was destroying the sight in her left eye.
“I didn’t notice I was losing vision at all, because I was young,” said Julia, now 12. “I didn’t know what a brain tumour was. I didn’t know what cancer was then, so it was pretty hard for me to understand.”
A biopsy of her tumour at Toronto’s Hospital for Sick Children determined Julia had what’s known as a low-grade glioma, a pediatric brain cancer that affects about 25,000 to 30,000 children worldwide.