Alterações anatomopatológicas relacionadas à Dioctophyme renale em cães e gatos parasitados

Abstract

The objectives of this dissertation were to present data on anatomopathological alterations related to Dioctophyme renale in parasitized dogs and cats. This dissertation is a study about the anatomopathological evaluation of biopsies of contralateral kidneys to those affected by D. renale and the presentation of a case report about parasitized feline. Here we present changes observed in renal biopsies of contralateral kidneys of 7 dogs undergoing right kidney nephrectomy. For the biopsies, the incisional technique was used, performed during the nephrectomy surgical procedure of the affected kidney. Biopsy analyzes revealed membranous glomerulonephritis (3/7), inflammatory infiltrate of mononucleated cells (4/7) and focal fibrosis was observed in two analyzed samples. In one case, it was noted focal and segmental glomerulosclerosis. We also bring in this study, a report of parasitism by D. renale in left kidney of a cat with presence of adjacent neoplastic mass. The mass consisted of dense connective tissue that had marked neovascularization and proliferation of elongated cells, sometimes pleomorphic and anaplastic cells arranged in swirls or nests. There was also marked hypertrophy of the vascular endothelial cells. The diagnosis of neoplasm was fibrosarcoma. Because it is an endemic parasitosis in the region and a zoonosis, studies must be continuous in order to develop an early diagnosis of the affected animals, and once the surgical removal of the affected kidney was performed, the biopsy of the contralateral kidney at the time of the surgical procedure would allow the establishment of staging of the renal functions of the remaining kidney.