proninja is inundated with family and friends visiting him, so he authorized me to give an official GMTAN update, though I'm sure he'll be in with more details and better descriptions of the medical stuff when he can.
Everything is going
very well! You might recall that, in conjunction with his first surgery, he had a shunt put in to take fluid from his brain to his abdomen, as kind of a fail-safe in the event the remaining portion of the cyst in his brain continued to block the fluid from draining naturally.
As it turns out, the shunt can not only take fluid from the brain to the abdomen but can take gut bacteria and yucky things from the abdomen up to the brain, which is what happened and caused an infection. The second surgery was to remove the shunt, and the doctors have been monitoring to see if the fluid is draining without the shunt such that they won't have to put one back in. It appears that this is occurring and that he won't have to get a new shunt.
With this great news, he could be released from the hospital as early as tomorrow.