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Dimorphics

Histo, Blasto, and Cocci,
mold at room temp and yeast at 37

Histoplasma Capsulatum what type of cultures??

Bone marrow, respiratory specimen, blood cultures

Histo Geographical

Ohio and Mississippi

How long does Histo take to grow

10-14 days

Appearance in Tissues

2-4 microns, INTRACELLULAR in macrophages, smaller than Blasto

Type of Media

fungal media with cycloheximide, which enhances

Must be differentiated from?

Sepedonium which is not dimorphic

BLASTOMYCES description

8-15 double walled, no macroconidia

BLASTO culture from

sinuses, drainage

BLAST at 37? at RT?

37 it is rounded (cotton seed) and RT it looks like lollipops

Media

cotton seed agar; converts Blasto

COCCIDIOIDES IMMITIS grows?

in 5 days

Causes?

San Juoquin Valley Fever or Desert Valley Fever

Appearance in tissue

SPHERULE (37)

Colony morphology

barrel-shaped arthroconidia

arthroconidia

hyphae fragments- reproductive cells (sporolates); highly infectious

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