<prompt> Endoscopic biopsy from a case of H.pylori related duodenal ulcer is most likely to reveal ?Antral predominant gastritisMulti focal atrophic gastritisAcute erosive gastritisGastric atrophy  <response>: Ans. is a i.e., Antral predominant gastritisH. Pylori infection and chronic gastritis o By far the most impoant etiologic association with chronic gastritis is chronic infection with H. Pylori. o Gastritis due to H. Pylori infection occurs in two patterns ?Predominantly antral gastritis -- Associated with high acid production and elevated risk for duodenal ulcer.Pangastritis multifocal atrophic gastritis -- Associated with lower gastric acid secretion and higher risk of gastric adenocarcinoma.H. Pylori associated diseases in GIT o Chronic gastritis o Peptic ulcer diseaseo Gastric carcinoma o Gastric MALT lymphoma 