All that drains is not infectious otorrhea

Area of Science:

• Otolaryngology
• Allergy and Immunology
• Medical Device Materials

Background:

• Otorrhea is commonly caused by bacterial infection and usually resolves with topical antibiotics.
• Non-infectious causes of otorrhea must be considered for persistent cases.
• Allergic reactions are an infrequent cause of otorrhea, typically linked to inhalant allergens or topical medications like neomycin.

Observation:

• Most reported allergic ear reactions involve the external auditory canal or pinna, often due to non-medicinal products.
• Previous literature has not documented recurrent or chronic otorrhea, without cholesteatoma, caused by an allergy to tympanotomy tube materials.

Findings:

• This report presents a unique case of recurrent otorrhea attributed to an allergic reaction to tympanotomy tube components.
• The patient experienced chronic ear discharge not explained by infection or cholesteatoma.

Implications:

• This case expands the differential diagnosis for chronic otorrhea.
• It underscores the importance of considering material allergies in medical devices, such as tympanotomy tubes, when conventional treatments fail.
• Further investigation into the biocompatibility of tympanotomy tube materials may be warranted.