You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The most common site of peptic ulcer in duodenum - and explain in detail?
Ans. is 'a' i.e., 1st part Peptic ulcero Ulcers are defined histologically as a breach in the mucosa of the alimentary tract that extends through the muscular mucosa into the submucosa or deep.o Peptic ulcers are chronic, most often solitary lesions that occur in any portion of the gastrointestinal tract exposed to the aggressive action of acid/peptic juice.Peptic ulcers located in the following sits, in order of decreasing frequency:1.Duodenum, 1st portion2 Stomach, usually antrum3 At the gastroesophageal junction in the setting of gastroesophageal reflux or Barrett's esophagus.4 Within the margins of a gastrojejunostomy.5 In the duodenum, stomach or jejunum of patients with Zollinger -Ellison Syndrome.6 Within or adjacent to Meckel's diverticulum that contains ectopic gastric mucosa.