Fig. 5From: Malignant transformation of a gastric hyperplastic polyp in a context of Helicobacter pylori-negative autoimmune gastritis: a case reportExamination of the background mucosa. a. The proper gastric glands in the pyloric region were preserved. There was no atrophic change. b. The proper gastric glands in the gastric body. The mucosa was atrophic and showed intestinal metaplasia and pseudo-pyloric metaplasia. Muc6 is a gastric pyloric gland- type secretory mucin. Enterochromaffin-like cell hyperplasia (linear hyperplasia and micro-nodular hyperplasia (arrows)) was revealed by chromogranin A stainingBack to article page