Aspergillus terreus as a possible cause of mycetoma on the foot of a dog.

Summary: Aspergillus terreus, a soil‐borne fungus, has been found incriminated as an opportunistic etiologic agent of canine mycetoma. The dog had a chronic swelling on the second digit of the right hind‐leg. The pathogen was isolated from the amputated digit on Sabouraud's medium at 37°C, and demonstrated in the clinical specimen by the potassium hydroxide technique. The isolate was virulent to white Swiss mice and sensitive to nystatin.