A REVIEW OF MYCOTIC NASAL GRANULOMA IN CATTLE, WITH A REPORT ON 3 CASES

Three cases of nasal mycotic granuloma containing fungal cells and hyp hae in cattle are described. In 2 animals a mucopurulent or purulent n asal discharge was seen clinically, and epistaxis in the third. Histol ogically, ulceration of the nasal mucosa and a severe granulomatous in flammation of the nasal submucosa with eosinophils as the predominant cell type were evident in the cattle. Non-pigmented fungal cells ident ified as chlamydospores and short septate hyphae were demonstrated in giant cells and extracellularly within the granulomatous reactions. In one case, the fungal elements were frequently surrounded by homogeneo us eosinophilic (Splendore-Hoeppli) material. Dematiaceous fungi, Bipo laris sp. and Drechslera sp., were isolated from 2 cases. Mycology was not performed on the third animal.