Primary cutaneous coccidioidomycosis and subsequent drug eruption to itraconazole in a dog

Three weeks after traveling to Arizona, a 13-month-old, female Labrador retriever developed draining tracts in the right hind limb. Primary cutaneous coccidioidomycosis was diagnosed. Initial treatment with itraconazole resulted in exacerbation of clinical signs. Histopathology was suggestive of a cutaneous drug eruption. Discontinuation of the itraconazole caused resolution of the drug eruption. Successful treatment of the fungal infection was achieved using ketoconazole.