argentaffin granules

argentaffin granules
granules that stain with silver.

Medical dictionary. 2011.

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  • argentaffin cell — ▪ anatomy       one of the round or partly flattened cells occurring in the lining tissue of the digestive tract and containing granules thought to be of secretory function. These epithelial cells, though common throughout the digestive tract,… …   Universalium

  • argentaffin — ar·gen·taf·fin är jent ə fən or ar·gen·taf·fine fən, .fēn adj 1 a) depositing reduced silver from ammoniated silver hydroxide solutions used of certain cell granules containing phenols or polyamines b) of, relating to, or being argentaffin cells… …   Medical dictionary

  • argentaffin cells — cells that stain readily with silver salts. Such cells occur, for example, in the crypts of Lieberkühn in the intestine. * * * enterochromaffin cells whose granules stain readily with chromium and silver salts, located in the basilar portions of… …   Medical dictionary

  • stain — 1. To discolor. 2. To color; to dye. 3. A discoloration. 4. A dye used in histologic and bacteriologic technique. 5. A procedure in which a dye or combination of dyes and reagents is used to color the constituents of cells and tissues. For… …   Medical dictionary

  • granule — 1. A grainlike particle; a granulation; a minute discrete mass. 2. A very small pill, usually gelatin or sugar coated, containing a drug to be given in a small dose. 3. A colony of the bacterium or …   Medical dictionary

  • methenamine silver stain — 1. (for argentaffin cells) a methenamine silver solution used together with gold chloride, sodium thiosulfate, and a safranin O counterstain; argentaffin granules are black while granules of mast cells remain red. 2. (for fungi) Grocott Gomori… …   Medical dictionary

  • Neuroendocrine tumor — Neuroendocrine tumors Classification and external resources Micrograph of a neuroendocrine tumor. H E stain. ICD 9 …   Wikipedia

  • Cell — The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane. Each cell in the human body there are 100 trillion cells in each of us contains the entire… …   Medical dictionary

  • chromaffin cells — 1. a type of APUD cells that stain readily with chromium salts, their cytoplasmic granules taking on a characteristic brown color; they are found especially in cells of the adrenal medulla and in paraganglia of the coccygeal gland and carotid… …   Medical dictionary

  • Paraganglioma — Classification and external resources Micrograph of a carotid body tumor (a type of paraganglioma). ICD 10 C …   Wikipedia

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