my daughter has a large intracranial arachnoid cyst, 5.5 x 6.5 x 11.7 cm. has has fenestration, shunt insertion and now posterior forra decompression surgery in Hamilton, Ontario, Canada. She seems to be getting worse with each surgery. we have tried to get second opinions in Toronto, but they refer us back to her surgeon. Wo would you recommend as her surgeon even admitts that he doesn t have a lot of experience with this type of surgery.