Alterações histopatológicas renais diagnosticadas em cães e gatos no Serviço de Oncologia Veterinária (SOVET-UFPEL) entre 2022 e 2024

Abstract

The kidneys are essential for maintaining the homeostasis of animals, performing The kidneys are essential for maintaining homeostasis in animals, performing functions such as waste excretion and regulation of acid-base balance. Renal injuries, caused by factors such as inflammation, neoplasms, toxins, and infections, often result in kidney disease. This may occur as acute kidney injury or chronic kidney disease, with the latter being more common in elderly dogs and cats. This study aimed to compile the renal histological alterations observed in dogs and cats treated at the Veterinary Oncology Service of the Federal University of Pelotas (SOVET/UFPel) between January 2022 and August 2024. Necropsy and biopsy reports with renal alterations were selected, and necropsy reports were categorized into cause-of-death lesions and incidental necropsy findings. Information regarding species, age, sex, breed, and histopathological lesion was tabulated and analyzed. As cause of death, the most frequent diagnosis in cats was acute tubular necrosis (38.5%), and in dogs, chronic kidney disease (30.9%). As an incidental necropsy finding, acute tubular necrosis was the most common diagnosis in both dogs and cats, representing 41.7% and 38.1%, respectively. Diagnoses were more frequent in male mixed-breed animals in both species. Elderly animals were the most affected in dogs, while adults were predominant in cats. Regarding biopsies, the predominant diagnosis was dioctophymatosis in dogs, and in cats, the only available sample also presented the same diagnosis. The results of the present study will be presented in the form of an article.