EN
Otitis externa (OE) is one the major health problems in canine and feline practice. The most common clinical signs observed in these cases include presence of otic discharge, odor and, usually, manifestations of ear pain and/or pruritus. The aim of the study was to estimate the frequency of otitis externa in dogs, analysis of clinical aspects of this disease and the estimation of the usefulness of cytology in the diagnosis of the causes OE. The study was conducted on 100 dogs in which their medical history, clinical and otoscopic examination revealed the presence of OE. During physical examination samples for cytology from vertical and horizontal parts of the external auditory canal were taken using sterile cotton swabs. The otitis externa was recognized in animals of various ages, most commonly in 1-7 years-of-age (a mean age of 4.5 years). The study showed that Yorkshire terriers, Spaniels, Boxers, Labradors and Golden Retrievers were overexpressed, on the other hand, in mongrels, German Shepherds and Dachshunds otitis externa was recognized more seldom than in other breeds. In most cases (55%) OE were recognized for the first time, less frequent were chronic/recurrent otitis externa (23% cases), periodically or sporadically (14% cases), in 8% of dogs the disease was considered as incompletely treated. Cytological examination revealed the presence of various pathogens in 88% of the cases, the most common yeast with Malassezia morphology were observed, rarely, bacterial or mixed infections (yeast + bacteria) were recognized, in 10 cases the presence of parasites was found during microscopic examination.