A Retrospective Study of Pythiosis in Domestic Animals in Northeastern Brazil.

Autor: de Souto EPF; Laboratory of Animal Pathology, Federal University of Campina Grande, Patos, Paraiba. Electronic address: erickplatini@gmail.com., Kommers GD; Pathology Department, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul., Souza AP; Small Animal Medical Clinic., Miranda Neto EG; Large Animal Medical Clinic, Federal University of Campina Grande, Patos, Paraíba., Assis DM; Large Animal Medical Clinic, Federal University of Campina Grande, Patos, Paraíba., Riet-Correa F; Laboratory of Veterinary Pathology, Federal University of Bahia, Bahia, Brazil., Galiza GJN; Laboratory of Animal Pathology, Federal University of Campina Grande, Patos, Paraiba., Dantas AFM; Laboratory of Animal Pathology, Federal University of Campina Grande, Patos, Paraiba.
Jazyk: angličtina
Zdroj: Journal of comparative pathology [J Comp Pathol] 2022 Jul; Vol. 195, pp. 34-50. Date of Electronic Publication: 2022 Jun 29.
DOI: 10.1016/j.jcpa.2022.05.002
Abstrakt: Pythiosis is an endemic disease in northeastern Brazil and we now report the epidemiological, clinical and pathological findings in a retrospective study of naturally occurring cases in domestic animals. From January 1985 to December 2020, the Laboratory of Animal Pathology of the Federal University of Campina Grande examined 13,542 tissue samples from necropsies and biopsies. Among these samples, 306 were diagnosed as pythiosis: 195 cases in horses, 75 in sheep, 19 in dogs, six in mules, four in cattle, three in cats, two in goats, one in a donkey and one in an ostrich. Affected equids had lesions in the skin, mammary glands and nasal cavities. Affected sheep had cutaneous, nasal and digestive lesions while cattle and goats had cutaneous lesions. Carnivores developed lesions, mainly in the alimentary tract, of sufficient severity to cause death or result in euthanasia. The single affected bird had lesions in the alimentary tract and surgical excision resulted in remission. The disease had a long and life-threatening clinical course in most affected species but resolved spontaneously in cattle. Clinical signs were directly related to the location of the lesions, which were invariably characterized by chronic inflammation associated with intralesional hyphae. Veterinary clinicians and pathologists should be familiar with the clinicopathological features of pythiosis and the wide range of susceptible animal species.
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Databáze: MEDLINE
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