Figure 3.

A case of inverted HP in the ascending colon. (A) Epithelial misplacement into the submucosa (arrows); (B) micropapillary projection at the surface area; (C) diffuse positivity for REG Iα in misplaced glands of the submucosa as well as in all glands of the mucosa; (D) REG Iα positivity representing goblet cells in the surface epithelium.

Okamoto et al. Diagnostic Pathology 2013 8:187   doi:10.1186/1746-1596-8-187
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