argentaffin cell

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argentaffin cell

[är′jen·tə·fən ‚sel]
(histology)
Any of the cells of the gastrointestinal tract that are thought to secrete serotonin.
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All other normal tissues were negative, including adrenal gland, pancreas, and argentaffin cells found in the gastrointestinal tract.
These nodules are thought to arise from pericellular mucosal nerve plexuses, possibly owing to stimulation by argentaffin cells that had migrated from the crypts of Lieberkuhn.
These cells can be classified as open or closed according to apical communication with the lumen (SANTOS; ZUCOLOTO, 1996); in argyrophillic and argentaffin cells by the capacity to retain and reduce silver salts (GRIMELIUS; WILANDER, 1980); and in hormone producing cells (insulin, secretin, somatostatin and others), principally based on the characteristics and content of their secretory granules (POLAK et al.
A modification of the Masson-Hamperl method for staining of argentaffin cells.
Elastic vascular sclerosis of mesenteric blood vessels in argentaffin carcinoma.
Intestinal-type endocervical adenocarcinomas are rare tumors, predominantly composed of cells with an intestinal appearance, including goblet, argentaffin, and rarely, Paneth cells.
As with neuroendocrine tumors from other sites, the cells are positive for argentaffin and argyrophilic stains and show dense-core neurosecretory granules on ultrastructural examination.
Argyrophil cells, argentaffin cells, and Paneth cells are the major nonmucinous components in GCC.
Immunohistochemical and ultrastructural studies of twelve argentaffin and six argyrophil carcinoids of the appendix vermiformis.
Histochemical stains show the tumor cells to be argentaffin and argyrophilic positive.
Some AISs exhibit intestinal differentiation with goblet cells and sometimes Paneth or argentaffin cells.