Blastomycosis
Anthony Chang, MD
Key Facts
Etiology/Pathogenesis
Blastomyces dermatitidis
Endemic to central/southern United States, Canada
Reported in Central/South America, Europe, and Africa
Ubiquitous dimorphic fungus acquired by inhalation
Macroscopic Features
Abscesses
Microscopic Pathology
Microorganisms, fungus
Thick wall, 8-15 µm in diameter
Broad-based budding
Granulomatous inflammation
Top Differential Diagnoses
Cryptococcosis
Coccidioidomycosis
TERMINOLOGY
Synonyms
North American blastomycosis
Gilchrist disease
Chicago disease
ETIOLOGY/PATHOGENESIS
Environmental Exposure
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