Histo stains

Question 1

What does the Fontana Stain detect?

Answer 1

Melanin (will go black)

Question 2

What does the Congo Red stain for?

Answer 2

Amyloid (apple green birefringent)

Question 3

What does the Rhodanine Stain detect?

Answer 3

Copper (golden brown against a blue counterstain)

Question 4

What does Prussian Blue stain for?

Answer 4

Iron (goes blue) - AKA Perl’s stain

Question 5

What does Cytokeratin stain for?

Answer 5

Epithelial cell (e.g. in a carcinoma)

Question 6

What does CD45 stain for?

Answer 6

Lymphoid cells

Question 7

What does the Ziehl-Neelson stain detect?

Answer 7

Acid-fast bacillus - TB (goes red against a blue background)

Question 8

What does the Auramine stain detect?

Answer 8

TB (bright yellow)

Question 9

What does Gomori’s methanamine silver stain detect?

Answer 9

Pneumocytic jirovecii (glying saucer shaped cysts)

Question 10

What does the Modified Kinyoung acid fast stain detect?

Answer 10

Cryptosporidium parvum

Question 11

What does the India Ink stain detect?

Answer 11

Cryptococcus neoformans (yeast cells surrounded by halos)

Question 12

What does the Giemsa Stain detect?

Answer 12

Chlamydia psittaci (cytoplasmic inclusions)

Question 13

What does the Fite stain detect?

Answer 13

Mycobacterium Leprae

Question 14

Which stain detects iron?

Answer 14

Prussian Blue

Question 15

Which stain detects copper?

Answer 15

Rhodanine

Question 16

Which stain detects amyloid?

Answer 16

Congo Red