Phaeohyphomycosis caused by Phialophora americana in a dog.

Phaeohyphomycosis was diagnosed in a 6-year-old, male castrated Dachshund on immunosuppressive treatment. The fungus was identified by culture and PCR as Phialophora americana. This is the first reported case of infection with this pathogen in a dog. The infection was successfully managed medically, without surgical intervention.