https://www.selleckchem.com/pr....oducts/Estradiol.htm
Duodenal ulcers are part of a broader disease state categorized as peptic ulcer disease. Peptic ulcer disease refers to the clinical presentation and disease state that occurs when there is a disruption in the mucosal surface at the level of the stomach or first part of the small intestine, the duodenum. Anatomically, both the gastric and duodenal surfaces contain a defense system that includes pre-epithelial, epithelial, and subepithelial elements. Ulceration occurs from damage to the mucosal surface that extends beyond the superfici