Oh my! I will begin praying for David and your family. My daughter was diagnosed with. Pilocytic astrocytoma Grade 2, July 2016 and due to the location it is inoperable. She is now 20 yrs old and we simply are watching it and praying that God will remove it. She has an MRI every 3 months as we monitor it. Going from a Grade 1 to a Grade 4 is my biggest fear. Please keep us posted as I will be praying.