Tracy, Thymic hyperplasia refers to an enlargement of the thymus gland not usual for the particular age you are. The thymus tends to shrink as we grow older and is not necessarily visible as an adult. Those with MG often have thymic hyperplasia. I do.

Did you get copies of your Acetylcholine Antibody tests? If not, do. Do you know if your modulating antibody was elevated and, if so, how high. It's shown in a percentage, like 30%. The higher the percentage, the higher risk of it relating to a thymoma.

Some doctors also run the striated muscle antibody, which has also been shown to be related to a thymoma. Not always but quite a bit. You could ask your primary doctor to run that test.

Thymic hyperplasia does not mean you have a thymoma or need surgery. There are some people with it that end up having a thymoma. Sometimes it can't be seen via CT.

The decision to have a thymectomy is dependent on a lot of variables such as age. And it's a highly personal decision that needs to be made after a great deal of thought and research.

Sometimes, after thymectomy, the thymus can "grow back." That would still be thymic hyperplasia . . . of the odd kind! Like Juanitad said, it can come back.

Does that answer your question? I hope you can find a good neuro around there.

Annie