Manifestação da otite externa em cães com dermatite alérgica: avaliação por meio da citologia otológica

Abstract

External otitis is one of the most common otological diseases in dogs and is frequently associated with allergic dermatopathies, especially canine atopic dermatitis. This study aimed to analyze the occurrence of external otitis in dogs with allergic dermatopathies treated at a veterinary dermatology clinic in Goiânia, Goiás. This is a retrospective, descriptive, and quantitative study, conducted based on the evaluation of 102 dogs treated between November 2025 and January 2026. Animals diagnosed with atopic dermatitis, food hypersensitivity, flea bite allergic dermatitis, and unexplained allergic dermatitis were included, and all underwent otological cytological evaluation to investigate external otitis. Variables such as breed, sex, age, classification of allergic dermatopathies, and the main microorganisms identified in ear cytology, including yeasts, cocci, bacilli, and mixed infections, were analyzed. The data were organized and submitted to analysis. The results demonstrated the occurrence of otitis externa in dogs with allergic dermatopathies, with a predominance of Shih Tzu dogs and a higher frequency of Malassezia spp. infections. In addition, canine atopic dermatitis represented the main dermatopathy observed in the animals evaluated. Thus, the results obtained broaden the knowledge about the relationship between allergic diseases and otitis externa in dogs, highlighting the main epidemiological aspects involved, in addition to reinforcing the importance of dermatological and cytological investigation for a more accurate diagnosis and appropriate management.