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PetriKey

Fungus

Cryptococcus neoformans

Encapsulated yeast

KRIP-toh-KOK-us nee-oh-FOR-manz

fungusyeastcapsuleopportunisticindia-ink

High-yield clue

Encapsulated yeast + India ink/cryptococcal antigen vocabulary.

Overview

An encapsulated yeast used to teach capsule visualization, cryptococcal antigen vocabulary, and opportunistic fungal associations.

Classification

  • Fungus
  • Yeast
  • Encapsulated organism

Lab & identification clues

  • Capsule concept
  • India ink historical vocabulary
  • Cryptococcal antigen test concept

Associations

  • Meningitis vocabulary in immunocompromised hosts
  • Bird-dropping environmental association
  • Opportunistic fungal concept

Commonly confused with

  • Candida albicans
  • Histoplasma capsulatum

Frequently asked questions

What is Cryptococcus neoformans?

An encapsulated yeast used to teach capsule visualization, cryptococcal antigen vocabulary, and opportunistic fungal associations.

What are the lab clues for Cryptococcus neoformans?

Lab clues for Cryptococcus neoformans include Capsule concept, India ink historical vocabulary, and Cryptococcal antigen test concept.

What is Cryptococcus neoformans commonly confused with?

Cryptococcus neoformans is commonly confused with Candida albicans and Histoplasma capsulatum.

Original student-study summary. Sources checked: OpenStax Microbiology 2e, NCBI Bookshelf Medical Microbiology, and CDC topic pages where applicable; reviewed 2026-06. Educational only; no diagnosis, treatment, dosing, or specimen-handling guidance.

OpenStax: Microbiology 2e organism classification foundations - sourceNCBI Bookshelf: Medical Microbiology organism chapters - sourceCDC: CDC disease and public-health topic pages - source