eng Science and Education Publishing International Journal of Celiac Disease 2334-3486 2019-01-04 6 3 87 88 10.12691/ijcd-6-3-2 IJCD2018632 article Nada Boutrid nadaboutrid@gmail.com 1 2 3 Hakim Rahmoune 3 3 4 Mounira Amrane 5 6 7 Department of Pediatrics, University Hospital of Setif; Setif 1 University, Algeria Genetic, Cardiovascular & Nutritional Diseases Laboratory; Setif-1 University, Algeria The expanding knowledge about gluten-related autoimmunity led to a serology-based step-wised approach to diagnose celiac disease that might be misleading due to laboratory techniques. We present a rare case associating initial false-negative anti-transglutaminase IgA antibodies while CD was confirmed by IgG anti-transglutaminase and subsequent duodenal biopsy. http://pubs.sciepub.com/ijcd/6/3/2/ijcd-6-3-2.pdf celiac disease autoimmunity immunoglobulin A tissue transglutaminase