General Information
Blastomyces dermatitidis is a pathogenic dimorphic fungus found
in the soil that causes chronic granulomatous and suppurative disease
(Blastomycosis) that usually begins in the lung, but may spread
to the skin, bone and other organs
Blastomyces
Cytology
Single broad based budding yeast (8-15 um)
Thick, refractile double contoured walls (not a true capsule)
Usually multinucleated
Granulomas
Special Note
These yeasts stain poorly with Wright-Giemsa and Diff-Quik. GMS
stain is excellent for demonstrating the organism.
