A person working in an abattoir presented with a papule on hand, which turned in to an ulcer. Which will best help in diagnosis______________?
Correct answer: A. Trichrome Methylene blue
- A. Trichrome Methylene blue
- B. Carbol Fuschin
- C. Acid Fast Stain
- D. Calcoflour White
Explanation
An abattoir worker with a papule progressing to an ulcer suggests cutaneous anthrax, caused by Bacillus anthracis. Polychrome methylene blue, also called the M’Fadyean stain, demonstrates the organism and its capsule; acid-fast and fungal stains are not appropriate.
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