Yes, B12 deficiency, when untreated long enough, can mimic MS very well if the patient survives that long.

Parietal cells should also be checked. Those two tests together show a high percentage of gastric (stomach) atrophy. They are not 100%, and the fact that your intrinsic factor test was normal does not mean that you are not experiencing atrophy and losing the ability to produce intrinsic factor.

The appropriate terms for the anemia you mention ("pernicious anemia) are megaloblastic and macrocytic. Pernicious anemia is the lack of intrinsic factor. Most doctors do not know that, and when possible their patients must teach them . A large percentage of people deficient in B12 do not have anemia, and in fact they are at greater risk of neurologic damage.

I'm confused. How can you be included in the study when you have had B12 shots?

rose