What is Argyrophilic in staining?

argyrophil. [ahr-ji´ro-fil] easily impregnated with silver; said of cells or tissues that bind with silver salts, which can then be reduced to produce a brown or black stain.

What is the meaning of argentaffin cells?

Argentaffin cell, 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. Their granules contain a chemical called serotonin, which stimulates smooth muscle contractions.

What is an argentaffin reaction?

A histologic reaction of waning popularity based on the reduction of ammonical silver to metallic silver, which was used to identify APUD (now known as neuroendocrine) cells.

What are Argyrophil cells?

Argyrophil cells are neuroendocrine cells which react with silver stain resulting in brown or black coloration with the help of an external reducer. Argyrophil cells occur rarely in the normal human uterine cervix but are found in a variety of invasive tumors arising in the cervix.

What does it mean to have an argyrophilic affinity for silver?

: having an affinity for silver —used of certain cells, structures, or tissues that selectively reduce silver salts to metallic silver argyrophilic cytoplasmic inclusions.

What is the meaning of the word argyrophil?

ar·​gyr·​o·​phil·​ic | ˌär-jə-(ˌ)rō-ˈfil-ik, -rə- . variants: also argyrophil ˈär-​jə-​(ˌ)rō-​ˌfil, -​rə-​ or argyrophile -​ˌfīl . : having an affinity for silver —used of certain cells, structures, or tissues that selectively reduce silver salts to metallic silver argyrophilic cytoplasmic inclusions.

What’s the difference between argentophilic and argyrophilic cytology?

is that argyrophilic is (cytology) having an affinity for silver (and thus able to be stained by a subsequent reducing agent) while argentophilic is argyrophilic. (cytology) Having an affinity for silver (and thus able to be stained by a subsequent reducing agent).

How are chromaffin and argentaffin cells different?

“Chromaffin” cells have cytoplasmic granules that appear brown when fixed with a dichromate solution. “Argentaffin” cells reduce a silver solution to metallic silver after formalin fixation. Either reaction can be produced depending upon which fixative was used.