- Increased IgG4+ cells in duodenal biopsies are not specific for autoimmune pancreatitisKatherine M Cebe
San Antonio Military Medical Center, Fort Sam Houston, TX, USA
Am J Clin Pathol 139:323-9. 2013..In summary, 12 of 51 patients without AIP had duodenal biopsies or ampullae showing increased IgG4+ plasma cells. The finding of increased IgG4+ cells in duodenal biopsies is not specific for AIP without the correct clinical context...