Can a person have "Pseudotumor cerebri" with a normal Brain MRI and no swelling of the optic nerves?
This is the second time you've asked this. The answer is Yes again. It is possible to have normal MRI and no 'swelling' of optic nerves (papilledema) in cases of Psuedotumor cerebri.
The diagnosis of psuedotumor is based on symptoms and an elevated opening pressure. So yes, you can be diagnosed with PTC and have no optic nerve swelling.
If you are poisoned by heavy metals and a parasite is in the pseudotumor...well, yes.