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The biological relevance of gastric neuroendocrine tumors.

Gastric neuroendocrine tumors were originally thought to have a low incidence (three percent). Since endoscopic diagnostic procedures have become clinical routine, they are now found more frequently (relative incidence up to 41 percent). In recent years, classifications have been developed that atte...

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Detalles Bibliográficos
Autores principales: Klöppel, G., Clemens, A.
Formato: Texto
Lenguaje:English
Publicado: Yale Journal of Biology and Medicine 1996
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2588971/
https://www.ncbi.nlm.nih.gov/pubmed/9041691
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author Klöppel, G.
Clemens, A.
author_facet Klöppel, G.
Clemens, A.
author_sort Klöppel, G.
collection PubMed
description Gastric neuroendocrine tumors were originally thought to have a low incidence (three percent). Since endoscopic diagnostic procedures have become clinical routine, they are now found more frequently (relative incidence up to 41 percent). In recent years, classifications have been developed that attempt to consider the biological relevance of these tumors. Four types of gastric neuroendocrine tumor may be distinguished: Type 1 gastric neuroendocrine tumor is most common. It is associated with chronic atrophic fundus gastritis, hypergastrinemia and often with pernicious anemia. Usually it is multicentric and smaller than one cm, does not produce any symptoms and has an excellent prognosis. Type 2 gastric neuroendocrine tumor is second in frequency. It has no association with other diseases, is solitary and has no predilection for a particular localization. It may be larger than 1 cm, produce a carcinoid syndrome or Zollinger-Ellison syndrome and have a metastasis rate of up to 30 percent. Type 3 gastric neuroendocrine tumor is rare and always associated with Zollinger-Ellison syndrome and multiple endocrine neoplasia type I. It occurs as multiple lesions in the gastric body fundus and has a lower metastatic rate than type 2 gastric neuroendocrine tumor. Type 4 gastric neuroendocrine tumor corresponds to a small-cell carcinoma.
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spelling pubmed-25889712008-12-01 The biological relevance of gastric neuroendocrine tumors. Klöppel, G. Clemens, A. Yale J Biol Med Research Article Gastric neuroendocrine tumors were originally thought to have a low incidence (three percent). Since endoscopic diagnostic procedures have become clinical routine, they are now found more frequently (relative incidence up to 41 percent). In recent years, classifications have been developed that attempt to consider the biological relevance of these tumors. Four types of gastric neuroendocrine tumor may be distinguished: Type 1 gastric neuroendocrine tumor is most common. It is associated with chronic atrophic fundus gastritis, hypergastrinemia and often with pernicious anemia. Usually it is multicentric and smaller than one cm, does not produce any symptoms and has an excellent prognosis. Type 2 gastric neuroendocrine tumor is second in frequency. It has no association with other diseases, is solitary and has no predilection for a particular localization. It may be larger than 1 cm, produce a carcinoid syndrome or Zollinger-Ellison syndrome and have a metastasis rate of up to 30 percent. Type 3 gastric neuroendocrine tumor is rare and always associated with Zollinger-Ellison syndrome and multiple endocrine neoplasia type I. It occurs as multiple lesions in the gastric body fundus and has a lower metastatic rate than type 2 gastric neuroendocrine tumor. Type 4 gastric neuroendocrine tumor corresponds to a small-cell carcinoma. Yale Journal of Biology and Medicine 1996 /pmc/articles/PMC2588971/ /pubmed/9041691 Text en
spellingShingle Research Article
Klöppel, G.
Clemens, A.
The biological relevance of gastric neuroendocrine tumors.
title The biological relevance of gastric neuroendocrine tumors.
title_full The biological relevance of gastric neuroendocrine tumors.
title_fullStr The biological relevance of gastric neuroendocrine tumors.
title_full_unstemmed The biological relevance of gastric neuroendocrine tumors.
title_short The biological relevance of gastric neuroendocrine tumors.
title_sort biological relevance of gastric neuroendocrine tumors.
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2588971/
https://www.ncbi.nlm.nih.gov/pubmed/9041691
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