Typhocolitis by Cyathostomins larvae on a donkey / Tiflocolite por larvas de ciatostomíneos em um asinino

ABSTRACT

Background: Cyathostomosis is the infection by nematode larvae of small strongyles belonging to the subfamily Cyathostominae (cyathostome). It is primarily a disease of young horses with global distribution. The parasites cause severe injuries to the intestine and the clinically affected animals have severe diarrhea, colic, intussusception, and less frequently intestinal infarction. The aim of this study is to describe the pathological findings of enteritis by cyathostome on a donkey in Brazil. Case A donkey (Equus asinus), crossbred female mongrel, approximately four-months-old, was referred to the Veterinary Hospital of the Federal University of Campina Grande, Patos, PB, Brazil with a history of trauma. On clinical examination, complete fracture of the left femur was identified. After performing euthanasia the donkey was necropsied. The animal was skinny with pale mucous membranes. The perineal region, base of the tail and hind limbs were dirty with yellowish fecal content. At necropsy, the large intestine had a pasty content and the mucosa was thickened with the multifocal whitish or dark red nodules. The cut surface of these nodules showed caseous material, sometimes associated with larvae in the submucosa. Microscopically, it was observed granulomatous and eosinophilic chronic multifocal associated with intralesional larvae of cyathostome-like nematodes. In the mucosa an [...]