Baby with a "blister"

I had one of the babies from this last clutch develop a "blister" on the top of it's head. I last saw it's head a few days ago sitting on top of the cut egg. Then yesterday everyone else was either out or making their way out this guy still hadn't popped his sack. So I checked to see if it was alive, it moved around just fine but had this "blister" now that wasn't there a few days ago. Everything went normal with this clutch and they were cut on day 53 and it's around day 60. The only odd part to this egg was that it was a boob egg and what was inside on the bottom. Has anyone ever seen anything like this?

http://i1217.photobucket.com/albums/...psfb092ea8.jpg
http://i1217.photobucket.com/albums/...ps7a7efa6c.jpg
http://i1217.photobucket.com/albums/...ps6e62a9b5.jpg
http://i1217.photobucket.com/albums/...ps04e1a6ff.jpg

Wow that is weird. Very curious to see how that one turns out. It kind of looks like its head was attached to that spot on the bottom of the egg?

Now that you've pulled it out of there, what do you plan on doing with it?

I was hoping that it would break the sack, absorb the yolk and come out. But early this morning nothing had changed.

Put him in a bowl with a warm wet paper towel and then cover the bowl with a warm wet paper towel. Make sure there is air flow. It probably wouldve been best to just leave him in the cut egg. No idea on the blister/tumour/exposed brain. First things first though, he needs to be kept humid and allowed to absorb the yolk.