Fig. 1

a H. pylori bacilli infecting the mucosal surface of an antral gland, marked with an arrow. Giemsa stain (60×). b1, b2 Chronic follicular gastritis with moderate atrophy of the gastric mucosa, moderate activity, the absence of metaplasia, and associated with H. pylori. Chronic follicular gastritis was characterized by the presence of intraepithelial polymorph nuclear inflammatory infiltration, expansion of the lamina propria at the expense of a dense mixed infiltrate consisting of both polymorph nuclear and mononuclear lymphocytes and plasma cells, and the formation of lymphoid follicles with germinal centres (arrows and circles) (haematoxylin-eosin), observed at 10× and 60× magnification