Gastrinoma
Gastrinoma | |
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Classification and external resources | |
Specialty | Lua error in Module:Wikidata at line 446: attempt to index field 'wikibase' (a nil value). |
ICD-O | M8153/1 |
DiseasesDB | 14279 |
eMedicine | med/2678 |
Patient UK | Gastrinoma |
MeSH | D015408 |
A gastrinoma is a tumor in the pancreas or duodenum that secretes excess of gastrin leading to ulceration in the duodenum, stomach and the small intestine. There is hypersecretion of the HCl acid into the duodenum, which causes the ulcers. Excessive HCl acid production also causes hyperperistalsis, and inhibits the activity of lipase, causing severe diarrhea.
It is frequently the source of the gastrin in Zollinger-Ellison syndrome.[1]
It is usually found in the pancreas, although it may arise in the stomach or duodenum. Those occurring in the pancreas have a greater potential for malignancy. Most gastrinomas are found in the gastrinoma triangle; this is bound by the junction of cystic and common bile ducts, junction of the second and third parts of the duodenum, and the junction of the neck and body of the pancreas.
Clinical Picture
Gastrinoma causes the following symptoms:
- Hypergastrinemia
- Ulcers of the duodenum, stomach, and small intestine.
- Severe diarrhea.
- Generalized cancer symptoms.
Diagnostics
- Fasting serum gastrin
- In case of moderate hypergastrinemia, a secretin stimulation test can help in the diagnosis
- Localization by somatostatin scintigraphy
Treatment
Treatment can involve surgery or proton pump inhibitors.
See also
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- -462749670 at GPnotebook
- USC
- Emedicine
- The Johns Hopkins University Pancreatic Islet Cell Tumor / Pancreatic Endocrine Neoplasms webpage
- Surgery Questions on gastrinoma
- Gastrinoma Triangle
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