Stains (Phyllis' Version)

Question 1

Fontana stain

Answer 1

+ve for melanin – Melanoma

Question 2

Congo red stain + apple green birefringence

Answer 2

+ve for amyloid – Amyloidosis

Question 3

Rhodanine stain

Answer 3

Golden brown against blue counterstain +ve for copper – Wilson’s disease

Question 4

Prussian blue

Answer 4

+ve for iron – Haemachromatosis

Question 5

Perl’s stain

Answer 5

+ve for iron – Haemachromatosis

Question 6

Cytokeratin

Answer 6

+ve for epithelial cells – Carcinoma

Question 7

CD45

Answer 7

+ve for lymphoid cells – lymphocytes

Question 8

Ziehl-Neelson

Answer 8

Red against a blue background +ve for acid-fast bacilli – TB

Question 9

Rhodamine-Auramine stain

Answer 9

Bright yellow – TB

Question 10

Gomori’s methanamine silver stain

Answer 10

Flying saucer shaped cysts – Pneumocystic jirovecii

Question 11

Modified Kinyoung acid fast stain

Answer 11

+ve for Cryptosporidium parvum

Question 12

India ink stain

Answer 12

Yeast cells surrounded by halos – Cryptococcus neoformans

Question 13

Giemsa stain

Answer 13

Cystoplasmic inclusions – Chlamydisa psittaci

Question 14

Fite stain

Answer 14

+ve for Mycobacterium leprae