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Arroyo Cabral, Argentina

Meyer S.N.,Catedra Enfermedades Parasitarias | Rosso M.,Actividad privada en diagnostico histopatologico | Maza Y.E.,Catedra Enfermedades Parasitarias
Revista Veterinaria

The adult stage of Dioctophyme renale usually parasites the right kidney of dogs and other wild and domestic mammals, although it may affect other organs or tissues as well. The purpose of this study was to report the finding of adults and eggs of D. renale in body cavities of a female dog, 18 months-old. The animal was found dead by the owner, who later asked for a necropsy at the School of Veterinary Science, Universidad Nacional del Nordeste, Corrientes, Argentina, as a poisoning was suspected as cause of death. Necropsy revealed the presence of two adult worms, one in the abdominal cavity and the other in the thorax, the latter measuring 40 cm long and 10 mm in diameter. In the mediastinal pleura it was verified the presence of 12 perforations, 20 to 50 mm in diameter. The lungs showed focal lesions, being more numerous in the right middle lobe. Histological sections revealed numerous eggs of D. renale. Histopathological findings characterized the existence of a multifocal granulomatous pleuritis. Source

Moriena R.A.,Catedra Enfermedades Parasitarias | Ortiz M.I.,Catedra Enfermedades Parasitarias | Racioppi O.,Catedra Enfermedades Parasitarias | Alvarez J.D.,Catedra Enfermedades Parasitarias
Revista Veterinaria

The purpose of this study is to present the fallibility of the coprologic standard method to determine the presence of the trematode Fasciola hepatica in capybara (Hydrochaeris hydrochaeris). For this purpose, 164 samples were analyzed by coprology and a total of 21 cases (12.8%) were positives, but the eggs found were consistent with the morphology and size of both F. hepatica and Taxorchis schistocotyle, fluke parasites of this rodent, with localization in liver and intestine, respectively. For both types of eggs it was no possible to make morphological differentiation when considering size and shape. As a conclusion, fasciolosis prevalence rates obtained from results using the coprology standard method in capybaras may be considered as doubtful, as the technique does not allow differentiating between F. hepatica and T. schistocotyle eggs. Source

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