A patient has a CD4 count of 80 per microliter and headache. India ink stain of CSF shows encapsulated yeast. Which organism is responsible?

Answer and explanation

Correct answer: B. Cryptococcus neoformans

  1. Step 1: India ink highlights the capsule of Cryptococcus. Answer: Cryptococcus neoformans. Why not the others: Candida albicans, Histoplasma capsulatum and Aspergillus fumigatus don't fit.

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