Veterinary Handbook Disease Finder

Middle Ear Abscess

Species

Goats are the main species of interest. Sheep are the main species of interest.

Other Names

  • Otitis Media

Syndromes

Description

An abscess in the middle ear occurs as a complication of ear mite infection or barley grass seeds. Usually only a single ear in a single animal is affected, but there may be multiple cases in sheep grazed on barley grass in summer. Signs are related to damage to the facial nerve as it passes through the middle ear.

Clinical Signs and Diagnosis

There will be a head tilt and a drooping upper eyelid, and if inflammation extends internally it results in circling and incoordination. Very rarely the infection extends to become a brainstem abscess, resulting in death. Progression to death is not rapid like in listeriosis and an otoscopic examination may reveal pus from the abscess deep in the ear canal.

Treatment

Antibiotic (procaine penicillin, or oxytetracycline) and anti-inflammatory (flunixin meglumine, or ketoprofen) treatment may delay or stop progression of signs. However, resolution of head tilt and other nervous signs is usually not possible.

Prevention

The usually sporadic occurrence of this condition does not warrant specific preventative measures.