Oct 30, 2015. Read about gastritis, an inflammation of the stomach lining caused by medications, NSAIDs, aspirin, ibuprofen, H. pylori, anemia, and . Stomach polyps — Comprehensive overview covers symptoms and. Illustration of stomach, pyloric valve and upper part of small intestine (duodenum). Feb 10, 2016 illustration showing the body of the stomach, fundus, cardia, pylorus. Before a true can...