Sinus disease is found as in the horse, with empyema, fungal infection, sinus cysts and tumours being recorded. [[Dental Problems - Donkey|Dental disease]] is a frequent cause of sinus infections especially in older animals. Neglected dental disease may also cause soft palate penetration and nasal discharge of food-containing matter. | Sinus disease is found as in the horse, with empyema, fungal infection, sinus cysts and tumours being recorded. [[Dental Problems - Donkey|Dental disease]] is a frequent cause of sinus infections especially in older animals. Neglected dental disease may also cause soft palate penetration and nasal discharge of food-containing matter. |