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Figure 1: Duodenal biopsy following four year history of positive tTG-antibodies: Significant villous atrophy, hyperplastic crypts, dense mononuclear infiltrate in duodenal mucosa (Marsh 3a-b) (HE, ×40 original magnification). Pseudostratified enterocytes, increased number of intra-epithelial lymphocytes/IELs and loss of mucus cells (inset, HE, ×120 original magnification).