Sarcocystid organisms found in bile from a dog with acute hepatitis: a case report and review of intestinal and hepatobiliary Sarcocystidae infections in dogs and cats.
Vet Clin Pathol
; 45(1): 57-65, 2016 Mar.
Article
en En
| MEDLINE
| ID: mdl-26870918
ABSTRACT
Sarcocystidae is a family of coccidian protozoa from the phylum Apicomplexa that includes Toxoplasma, Neospora, Sarcocystis, Hammondia, and Besnoitia spp. All species undergo a 2-host sexual and asexual cycle. In the definitive host, replication is enteroepithelial, and infection is typically asymptomatic or less commonly causes mild diarrhea. Clinical disease is most frequently observed in the intermediate host, often as an aberrant infection, and is mostly associated with neurologic, muscular, or hepatic inflammation. Here, we review the literature regarding intestinal Sarcocystidae infections in dogs and cats, with emphasis on the life cycle stages and the available diagnostic assays and their limitations. We also report the diagnostic findings for an 11-year-old dog with acute neutrophilic hepatitis, biliary protozoa, and negative biliary culture. Although Toxoplasma and Neospora IgG titers were both high, PCR for these 2 organisms was negative for bile. The organisms were identified by 18S rDNA PCR as most consistent with Hammondia, either H heydorni or H triffittae. This is the first report of presumed Hammondia organisms being found in canine bile.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Bilis
/
Enfermedades de los Gatos
/
Coccidiosis
/
Sarcocystidae
/
Enfermedades de los Perros
/
Hepatitis Animal
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Vet Clin Pathol
Asunto de la revista:
MEDICINA VETERINARIA
/
PATOLOGIA
Año:
2016
Tipo del documento:
Article
País de afiliación:
Estados Unidos