- Rhinosporidium seeberi
- Lives in water
- Causes a chronic, benign disease
- Affects cattle, mules, horses, dogs and humans
- Causes polyps on the nasal and ocular mucous membranes
- Over 90% of cases affecting the nasal mucous membranes affects male animals
- Occurs most frequently in tropical countries
- Also common in the USA
- Large sporangia can be seen on wet mounts
- Endospores visible
- Sporangia develop into small, globose spores
- Treatment is by surgical excision