This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Pathology
Endoscopic biopsy from a case of H. pylori related duodenal ulcer is most likely to reveal: 
Select and explain. 
A. Antral predominant gastritis, B. Multifocal atrophic gastritis, C. Acute erosive gastritis, D. Gastric atrophy
A: Antral predominant gastritis
Answer: A: Antral predominant gastritis 
Explanation: Ans. (a) Antral predominant gastritis(Ref: Harrison 18th ed: 2458, 17th ed:1870)The most common cause of chronic gastritis- H. pylori QWithin the stomach, H. pylori are most often found in the antrum - antral predominant gastritis Q or type B gastritis Q