Estudo retrospectivo de neoplasias espontâneas em rattus novergicus

Abstract

The growing popularity of exotic rodents as pets has increased the demand for new products and services in veterinary clinics, highlighting the importance of proper management and study of the diseases that affect these animals, given that information is still scarce. The objective of the present work was to carry out a retrospective study of cases of neoplasms in rats (Rattus novergicus) kept as pets and treated at the Animal Pathology Laboratory of the Veterinary Hospital of the Federal University of Uberlândia (HOVET-UFU), in the period 2020-2023. The medical records of rats (Rattus novergicus) treated at HOVET-UFU were selected and, of these, the ones diagnosed with spontaneous neoplasms were analyzed and their data on sex, age, location and type of tumor were collected. The animals were grouped according to age as adults (1 year) or senile (2 to 4 years). A total of 28 cases of Rattus novergicus were observed and, of these, 19 cases (67.86%) were spontaneous neoplasms. Seventeen cases came from biopsies and two cases from necropsies. Regarding the sex and age of the animals with neoplasms, 89.47% (n=17) were females and 10.5% (n=2) males, and, as for age, 26.3% were adults (1 year), 52.6% 2 years senile , and 21.05% 3 to 4 years senile. Spontaneous neoplasms corresponded to n=21 different histological types, and the most frequent were breast fibroadenomas (38.1%), followed by breast carcinomas (14.28%) and fibromas (14.28%).