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UND 363 Chur-schenk
UND 363 Churukian-Schenk
Question | Answer |
---|---|
purpose for Churukian-schenk | demo argyrophil granules in neurosecretory tumors (ie cardinoid tumors) |
principle for Churukian-schenk | argyrophil tech. therefore can bind silver but cannot reduce w/t reducer substance |
fix | NBF |
tech | 4-5 chem cleaned glass |
qc | argyophil pos. (carcinoid tumor preferred), but can used sm. intestine |
reagents for Churukian-schenk | acidified water (citric acid)- prep step, silver nitrate - impregnation, soduim sulfite/hydroquinone - reducer, N fast red counterstain |
results for Churukian-schenk | argyrophil granules/argentaffin substances - black, nuclei - red, background yellowbrown |