Toni, I don't have a biopsy scheduled yet but my GI doc said that he will probably do it. He is doing more blood work. But the fact that my ASMA was a high pos. he said that it will have to be done. I'm reading mixed reviews. Some say painful, some say it is not. I have also been reading that it could be risky. I hope your son is doing well. He's too young to go thru all of this. Thank you for taking time to respond.