I don't know... I suppose any of them could? Could a Tapeworm cyst show as a "nodule" on a scan?
If it was anyone else, I would be inclined to think it was not parasite related.. but a cyst or something on the thyroid that is causing all those parasite like symptoms.. but you have all kinds of weird stuff going on and have had a positive test in the past from Cahill... so if it was me, I would maybe think hookworm?
Don't they go all over the body through the blood stream? I could've sworn someone said that.
Either way, wouldn't they have to remove the nodule or biopsy it?