—said as Arnold Schwarzenegger— it’s not a tumor.
Well actually looks like it is.
How does this even happen? I thought there was a sensor if the front of the tool head pops off??
I’m not even sure how to get this off of here.
Ouch.
It looks like you are missing a magnet. If it is still stuck to the print head then you may have the misfortune of 1:4 chance it is a mag switch and that one told the printer the cover was still on.
Anyhow…
Start by cutting off the bulk of it.
When you get closer to the organs 
be careful. If it got into the fan, the it is a write off and get a new one. A heat gun and needle nose pliers may help to soften it and separate it from the housing.
Please don’t share those pictures again. They gave me nightmares. 
In all seriousness, did you figure out what caused it?
Basically it came down to a 1st layer issue. And it just kept going. I need to figure out why the sensor didn’t trip when the front cover came off.
