Three subtypes of gastric argyrophil carcinoid and the gastric neuroendocrine carcinoma: A clinicopathologic study

Guido Rindi, Ombretta Luinetti, Matteo Cornaggia, Carlo Capella, Enrico Solcia

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Abstract

Background: Enterochromaffinlike (ECL) cell carcinoids recently observed in rats stimulated new interest in gastric endocrine tumors arising in humans. Methods: Paraffin-embedded sections of 55 endocrine tumor cases were stained with H&E, mucin tests were performed, and immunoperoxidase was used for detecting endocrine markers; 23 cases were also investigated ultrastructurally. Results: Forty-five argyrophil carcinoids, 9 neuroendocrine carcinomas, and 1 gastrinoma were identified. Three clinicopathologic subtypes of carcinoids were characterized: (1) twenty-eight cases, none metastatic, arose in a background of body-fundus atrophic gastritis and hypergastrinemia; (2) seven cases, 2 locally metastatic, were associated with hypertrophic gastropathy and hypergastrinemia due to multiple endocrine neoplasia/Zollinger-Ellison syndrome; and (3) ten were sporadic cases, 7 of which were deeply invasive, 6 metastatic, and 5 histologically atypical. All carcinoids showed histochemical and ultrastructural patterns of ECL cells. The 9 neuroendocrine carcinomas, all deeply invasive and metastatic, were composed of anaplastic, smallto intermediate-sized cells with high mitotic index and focal necrosis. Conclusions: Gastrin-promoted carcinoids represent a benign or low grade tumor disease, whereas sporadic carcinoids and neuroendocrine carcinomas are life-threatening neoplasms, independent of gastrin promotion.

Original languageEnglish
Pages (from-to)994-1006
Number of pages13
JournalGastroenterology
Volume104
Issue number4
Publication statusPublished - 1993

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Neuroendocrine Carcinoma
Carcinoid Tumor
Stomach
Gastrins
Neoplasms
Gastrinoma
Multiple Endocrine Neoplasia
Zollinger-Ellison Syndrome
Atrophic Gastritis
Mitotic Index
Mucins
Paraffin
Necrosis

ASJC Scopus subject areas

  • Gastroenterology

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Three subtypes of gastric argyrophil carcinoid and the gastric neuroendocrine carcinoma : A clinicopathologic study. / Rindi, Guido; Luinetti, Ombretta; Cornaggia, Matteo; Capella, Carlo; Solcia, Enrico.

In: Gastroenterology, Vol. 104, No. 4, 1993, p. 994-1006.

Research output: Contribution to journalArticle

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AU - Capella, Carlo

AU - Solcia, Enrico

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