I can't remember where I read it, but from what I understood removing the submandibular gland was basically removing the second step of metastasis in Anterior 2/3's of the tongue cancers. Like I said, I can't remember where I read that or if that's total bullshit. LOL It might have been a standard of care sort of thing.

I do know that mine was removed and I haven't had any problems with it gone. The only time I have a problem with it gone, is if I snore with my mouth open. My mouth gets much drier than it used to. It takes a minute to get my mouth moist again.