My father was recently diagnosed with Astrocytoma Grade 4, and will start chemotherapy in tablet form and radiotherapy. What other treatments are available to increase his chances of survival? What about Stereoactic radiotherapy and Radiosurgery or Brachytherapy? Our nuerosurgeon said he is unable to remove it as it has two blood vessels running through it and they risk paralysing him also he said there is no point removing part of it as it will grow back, please help as this is all new to us and we want the best for my father, he is 64 years old and we live in Australia but will travel anywhere for the best treament available.