<<Disclaimer: Verify this information before applying it to your situation.>> Hi: In response to the recent posting regarding lymphoma and the frequency of endoscopy and colonoscopy, I pose the following question: Does anyone have any "celiac medical expert" opinions as to how often it is recommended to have an endoscopy and colonoscopy performed? I'm not sure that I've ever actually seen a standardized guideline on this issue. Thanks - I'll certainly summarize should I receive any information. - Laurie