Resumo (EN)
Aspergillus are ubiquitous in environment and the most species involved in veterinary diseases are A. fumigatus, A. terreus and A. deflectus . A. terreus is usually related to systemic diseases, and A. fumigatus with no disseminated infections. Aspergillosis is associated with immunodeficiency, caused by immunosuppressive drugs, corticosteroids and debilitated diseases. Suspicion of aspergillosis is based on the historic and physical examination of the animal, and diagnosis is confirmed using rhinoscopy, radiography, computed tomography, culture, histopathology and sorology tests. The effective treatment of the disease is really hard; topic therapy is an alternative on nasal aspergillosis, but is not enough when the fungus has reached the soft tissues extra cavity, becoming necessary systemic therapy, which is longer and presents low efficacy. Although it has many descriptions of these diseases in available literature, in Brazil there are a few references about that. Concluding, canine aspergillosis could not forget by veterinary clinicians, because the fastest