Zollinger Ellison Syndrome is also known as what?

Zollinger-Ellison Syndrome is primarily characterized by gastrin-secreting tumors known as gastrinomas, which lead to excessive production of gastric acid. These tumors are often located in the pancreas or the duodenum, and the high levels of gastrin result in recurrent peptic ulcers and increased gastric acid secretion. The term "gastrinoma" directly refers to the tumor that causes this disorder, making it the correct designation for Zollinger-Ellison Syndrome.

Understanding that gastrinomas are the underlying cause of the syndrome is crucial for recognizing its implications in terms of diagnosis and treatment. This condition is distinct from other options listed, such as gastritis (inflammation of the stomach lining), gastroenteritis (inflammation of the stomach and intestines), and gastroesophageal reflux (backflow of stomach contents into the esophagus), which are unrelated to the tumor-driven hypersecretion of gastrin. Thus, referring to Zollinger-Ellison Syndrome as gastrinoma aptly emphasizes its pathophysiological basis in gastrin-secreting tumors.