Fig. 5From: Relationship between mucosal TNF-α expression and Th1, Th17, Th22 and Treg responses in Helicobacter pylori infectionHistological examination. A Gastric pits infiltrated by neutrophils in a case of H. pylori-positive. B Severe chronic gastritis with chronic inflammatory cells presents in the superficial lamina propria in excess of normal. C H. pylori organisms are present in the mucous layer on the gastric mucosal surface (400x)Back to article page