I posted on here a few weeks ago talking about some of my lab results and what they could possibly entail. Some possibilities were atrophic gastritis and pernicious anemia. I definitely have been diagnosed with barrett's esophagus at the young age of 30. The reason why atrophic gastritis/pernicious anemia was a possibility is because my parietal cell antibody count is off the charts high at 113.4 and also because of my symptoms. Upper abdominal pain/pressure, heartburn, excessive bloating and gas, feeling full quickly, iundigested food in stool, and malabsorption of vitamins/minerals. Last week my doctor did a gastrin serum test, and result of this is also WAY off the charts. Normal is 0-115. My result is 1847, was tested twice to be sure it wasn't contaminated or anything. I have discussed atrophic gastritis/pernicious anemia with my GI doctor as well as my hemotologist. Hemotologist says it's definitely pernicious anemia, but GI doctor says since my gastrin levels are so high that I may have a rare genetic condition called multiple endocrine neoplasia syndrome. I didn't know such a condition existed until yesterday. Has anyone had the gastrin test and had such a high result? I'm not sure if I'm posting under the right topic anymore, so if anyone knows another forum topic I could post this under please let me know. Doctor wants to do an MRI of abdomen/pelvis to check for tumors and draw more labs that are particular to this genetic condition. One thing as well, is he also tested SED rate (the result was 4) and c reactive protein (result was <0.3) so he says I don't have a lot of inflammation or anything. Is there anything else I should ask about or be aware of? Has anyone gone through something similar? Hearing all these possibilities at once has been pretty overwhelming the past couple of weeks.