Soon thereafter, he presented with symptoms and elevated gastrin levels suggestive of ZES prompting abdominal exploration with partial resection of the duodenum to remove gastrinoma tumor nodules.
Zollinger-Ellison syndrome (ZES) is caused by ectopic secretion of gastrin from a neuroendocrine tumor resulting in severe acid hypersecretion requiring life-long antisecretory treatment with PPIs, which are the drugs of choice.
This article reviews the role of surgical and medical management in patients with Zollinger-Ellison syndrome (ZES) due to a gastrin-secreting neuroendocrine tumor (gastrinoma).
Zollinger-Ellison syndrome (ZES) is a clinical syndrome characterized by gastric acid hypersecretion due to the ectopic secretion of gastrin by a gastrinoma, a neuroendocrine tumor (NET) which mostly develops in the duodenum and in the pancreas.
Increase in serum gastrin level happens under various conditions including Zollinger-Ellison syndrome, antral G cell hyperplasia, autoimmune gastritis, atrophic gastritis, renal failure, vagotomy, Helicobacter pylori infection and acid suppressive therapy.
Little is known about possible molecular alterations in gastrinomas, tumors that may be particularly virulent because of gastrin overproduction, resulting in the severe ulcer diathesis, the Zollinger-Ellison syndrome.
A 35S-labeled cDNA probe encoding the human gastrin pre-pro-hormone was used to localize gastrin gene transcripts in antral mucosa and digestive endocrine tumors from patients with a Zollinger-Ellison syndrome characterized by high serum gastrin levels.
Lack of effect of parathyroidectomy or calcium channel blockade on serum gastrin concentration and gastric acid secretion in a patient with hyperparathyroidism and Zollinger-Ellison syndrome.