Culture-guided management of proliferative necrotizing otitis externa in a cat

Year 2026, Accepted Papers, 1 - 4

Elif Ünlü , Nihal Gül Satar , Serpil Kahya Demirbilek , Selda Beker

https://doi.org/10.33988/auvfd.1752349

Abstract

This case report describes the diagnosis and long-term management of bilateral necrotizing otitis externa in an 11-month-old cat. Clinical, cytological, and microbiological findings supported a presumptive diagnosis of proliferative and necrotizing otitis externa (PNOE). Microbiological culture identified multidrug-resistant Pasteurella multocida and Staphylococcus intermedius. A seven-month, culture-guided treatment using topical and systemic antimicrobials helped resolve secondary bacterial infections. Complete clinical and microbiological resolution was achieved, with no recurrence observed. This case shows that targeted antimicrobial therapy can support recovery in complicated PNOE cases.

Keywords

Antibiogram , Bacteriology , Cat , Feline Otitis externa

Ethical Statement

This clinical case report does not present any ethical concerns.

Thanks

The authors would like to thank Ayşe Uyar, a technician at the microbiology laboratory, for her valuable assistance during the microbiological analyses.

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