Microbiology: Histoplasmosis Flashcards
1
Q
What is this organism?
A
Histoplasma
- Patient from Mississippi-Ohio-Missouri river valleys with calcifying lung lesions
- Small intracellular yeasts in macrophages with no true capsule
- Blastomyces also presents with calcifying lung lesions, but is a broad based budding yeast
2
Q
What is this organism?
A
Blastomyces
- Mississippi-Ohio-Missouri river valleys with calcifying lung lesions
- Broad-based budding yeast
- Histoplasma also presents similarly except it is small intracellular yeasts in macropages
3
Q
What is this organism?
A
Cyptococcus
- Most common cause of fungal meningitis
- Prominent capsule
4
Q
What is this organism?
A
Paracoccidioides
- Multiple budding surrounding the mother cell, giving the appearance of a pilot’s wheel
5
Q
What is this organism?
A
Coccidioides immitis
- non-budding spherules filled with endospores
