Surgeon thinks they got the whole tumor out. It was quite large. Radiology report said 6 cm by 6 cm by 4.5 cm. Presumably not actually a prism or spheroid with those dimensions, but still. Bigger than a golf ball, and you can't actually fit that many golf balls into a child's brain cavity. (Not that I'm inclined to try.)
Road ahead still uncertain, but it sounds like we may be on not quite so precarious a path.