Rhinosporidiosis in a mule

Abstract

After review of the literature, including a list of cases already published, a case of rhinosporidiosis in a mule is reported. Macro and microscopic descriptions of the polyp are made, corroborating those given by others authors as well as the reticulum hyperplasia around the parasites. The polysaccharide nature of the membranes of sporangia and spores was demonstrated through Hotchkiss's method. Attempts to cultivate the fungus in different mediums, as well as experimental innoculation in various animals, had negative results. Besides these evidences, the factors of incidence of the disease, as related to species, breed, sex and age, are discussed comparatively with the literature.