engleski

FELINE PATHOLOGIC CHANGES DIAGNOSED USING CYTOLOGY

The microscopic analysis of cytological samples is a simple, fast, cheap and minimally invasive method for diagnosing pathologic changes in cats, used routinely in many veterinary clinics. This research has examined all changes that were diagnosed in cats from cytological samples delivered to the Department of Veterinary Pathology from 2009 to 2018. The diagnosed changes were classified as one of the following categories: “neoplasia”, “inflammation”, “other pathologic changes” or “nondiagnostic samples”, based on the reported criteria for a cytological examination. For each change, breed, age, gender and anatomic location were analysed by using statistics to determine whether these variables were connected to the diagnosed change. The total number of examined samples, which originated from an approximately equal number of males (49%) and females (51%), was 306. The most frequent change was neoplasia (44%), while inflammation (20%), other pathologic changes (18%) and nondiagnostic samples (18%) were detected in a similar number of the cats. Round cell neoplasia was the most frequent neoplasia (33%), followed by mesenchymal (31%) and epithelial neoplasia (28%). The most common breed was domestic short-haired, but there was no connection between the breed and the category. Pathologic changes were diagnosed in altogether 10 organ systems, of which the skin was the most frequent. The average age of the examined cats was 8.4 years (y), with a variation between categories: the average age of the cats with neoplasia was 9.2 y, with inflammation 8.0 y, with other pathologic changes 8.6 y and with nondiagnostic samples 7.7 y. The most frequent type of inflammation was purulent, followed by pyogranulomatous inflammation. Other types of inflammation were diagnosed in a low number of the cats. Reactive hyperplasia of lymph nodes was the most frequent among other diagnosed pathologic changes. In conclusion, the most frequently diagnosed pathologic changes in the cats were neoplasia, which corresponds to literature data. The most frequent neoplasia was round cell neoplasia, which is the most common neoplasia in cats. The skin was the most frequent tissue sampled, probably due to easy accessibility.

diagnostic cytology, cat, neoplasia, inflammation, epidemiology

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