That isn't a regular parasite,
It's his twin who he consumed in the womb and kept inside him.
Like a parasite, the twin developed inside him, and grew.
So that explains the tooth and stuff.
I just kind of read it if someone knows more detail, go ahead
Because its a twin the died early on in the womb and he literally absorbed it, growing around it. Usually thet go undetected fir decades until they start growing, usually due to hormone shifts.
It's his twin who he consumed in the womb and kept inside him.
Like a parasite, the twin developed inside him, and grew.
So that explains the tooth and stuff.
I just kind of read it if someone knows more detail, go ahead