Zollinger Ellison Syndrome is a rare disorder characterized by the formation of tumours in the pancreas or duodenum, resulting in the overproduction of stomach acid. This condition can lead to severe abdominal pain, diarrhea, and weight loss. The name of this disorder is spelled using the International Phonetic Alphabet (IPA) as /ˈzɔlɪndʒər ˈɛlɪsən sɪndroʊm/. The spelling reflects the German origin of the surname Zollinger and the last name of Dr. John Ellison, who first described the syndrome in 1955.
Zollinger-Ellison Syndrome (ZES) is a rare medical condition that affects the gastrointestinal system. It is characterized by the overproduction of gastrin, a hormone responsible for stimulating the secretion of gastric acid in the stomach. This excessive production of gastrin leads to the development of multiple tumors, known as gastrinomas, within the pancreas or duodenum (the first part of the small intestine).
The tumors associated with Zollinger-Ellison Syndrome are usually malignant and can cause an increase in gastric acid production, resulting in peptic ulcers in the stomach, duodenum, and sometimes other parts of the small intestine. These ulcers can be both chronic and resistant to conventional treatment methods. The excessive gastric acid production can also lead to gastroesophageal reflux disease (GERD), a condition characterized by the backflow of stomach acid into the esophagus.
Individuals with Zollinger-Ellison Syndrome often experience recurrent abdominal pain, diarrhea, and weight loss. They may also develop complications such as bleeding ulcers, intestinal obstruction, or perforation. ZES can occur sporadically or as part of a genetic disorder called multiple endocrine neoplasia type 1 (MEN1).
Diagnosis of Zollinger-Ellison Syndrome involves blood tests to measure gastrin levels, imaging studies to locate the tumors, and sometimes endoscopy or biopsy to confirm the presence of gastrinomas. Treatment typically involves the use of medications known as proton pump inhibitors (PPIs), which reduce gastric acid secretion and help alleviate symptoms. Surgical removal of the tumors may also be considered in certain cases.