Stain used to study fungal morphology in tissue sections – Pathology MCQ

Which stain is used to study fungal morphology in tissue sections?

A. Periodic acid–Schiff

B. Alizarin Red

C. Masson’s Trichrome

D. Von Kossa

Correct answer : A. Periodic acid–Schiff

Stains used to demonstrate fungi are Periodic Acid Schiff (PAS) and Methenamine Silver Stain
PAS stains both living and dead fungi, whereas Methenamine Silver stains only living fungi
Massons’s Trichrome is used to demonstrate collage, muscle and fibrin
Alizarin Red and Von Kossa are used to demonstrate calcium in tissues

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