Pathological Findings of Parasitism by Cruorifilaria tuberocauda in Hydrochoerus hydrochaeris

Abstract

Cruorifilaria tuberocauda is a nematode of the superfamily Filaroidea, primarily reported in South American countries, affecting capybaras (Hydrochoerus hydrochaeris). This parasite can cause severe vascular lesions leading to thickening of the vascular wall, and, especially in the regions of the heart, lungs, and kidneys. This article aims to describe the anatomopathological findings of Cruorifilaria tuberocauda in capybaras. The morphological diagnosis of the patient revealed moderate multifocal to coalescent necrohemorrhagic dermatitis, moderate multifocal hemorrhage in the lungs, disseminated moderate lipid degeneration in the liver region, and moderate multifocal lymphocytic interstitial nephritis, in addition to moderate multifocal vasculitis caused by C. tuberocauda.