Diagnosis of nasal cryptococcosis with cutaneous and respiratory involvement in a domestic feline

This paper describes a case of Cryptococcus sp. infection in a domestic feline with cutaneous and respiratory alterations. The 4-year-old male animal, of no defined breed, presented with an increase in volume in the nasal region, with multifocal ulcers and a reddish surface. After careful clinical assessment, samples were taken for a screening cytopathological examination, which revealed yeast-like structures compatible with Cryptococcus sp., which was confirmed with a biopsy followed by a histopathological examination which showed the presence of yeasts of the fungus and a fungal culture obtained by swabbing the lesion and exudates which confirmed the presence of yeasts. Different diagnostic techniques were decisive in instituting treatment, based on using oral antifungals for 90 days.