Fig.24-A1
Blastomycosis

In this older patient from Cincinnati / Ohio, USA a linear skin scar is found reaching from the left eye along the nose and cheek to the chin, possibly after a previous treatment with medicaments.

Fig.24-A2
Blastomycosis

Culture of the mycelial phase of the dimorphic Blastomyces dermatitidis growing at room temperature. Macroscopical aspect of the colony. In the yeast-like phase of this dimorphic fungus the round fungus cells show a diameter up to 25 µ and occur in the human and animal tissue, that means at higher temperatures.

Fig.24-A3
Blastomycosis

In smears of the mycelial phase of the Blastomyces dermatitidis thin hyphae and microconidias are found. The latter are connected with the hyphae by short and thin stalks. The culture of Paracoccidioides brasiliensis in the mycelial phase looks similar.