Histological Stains Flashcards
Fontana stain (indication when positive, condition)
+ve for melanin
Melanoma
Congo red stain (positive outcome, indication when positive, condition)
Apple green birefringence
+ve for amyloid
Amyloidosis
Rhodanine stain (positive outcome, indication when positive, condition)
Golden brown against blue counterstain
+ve for copper
Wilson’s disease
Prussian blue stain (indication when positive, condition)
+ve for iron
Haemachromatosis
Perl’s stain (indication when positive, condition)
+ve for iron
Haemachromatosis
Cytokeratin stain (indication when positive, condition)
+ve for epithelial cells
Carcinoma
CD45 stain (indication when positive, cells used to check for)
+ve for lymphoid cells
Lymphocytes
Ziehl-Neelson stain (positive outcome, indication when positive, condition/organism)
Red against blue background
+ve for acid-fast bacilli
Tuberculosis
Auramine/rhodamine stain (positive outcome, indication when positive, condition/organism)
Bright yellow
+ve for mycobacteria/TB
Tuberculosis
Gomori’s (Grocott-Gomori) methanamine silver stain (positive outcome, indication when positive, condition)
Flying saucer-shaped cysts
+ve for pneumocystic jirovecii
Pneumocystis pneumonia
Modified Kinyoung acid-fast stain (indication when positive, condition)
+ve for cryptosporidium parvum
Cryptosporidiosis (intestinal infection)
India ink stain (positive outcome, indication when positive, condition)
Yeast cells surrounded by halos
+ve for Cryptococcus neoformans
Cryptococcus respiratory infection
Giemsa stain (positive outcome, indication when positive, condition)
Cytoplasmic inclusions
+ve for Chlamydia psittaci
Respiratory psittacosis
Fite stain (indication when positive, condition)
+ve for mycobacterium leprae
Leprosy
