RESUMO
This note describes the sudden death of a dog by the rupture of the thoracic aorta caused by the presence of Angiostrongylus vasorum. A female mongrel canine with a history of weight loss and exhaustion died two hours after clinical examination. At necropsy, performed one hour after death, showed the presence of clotted blood in the thoracic cavity. Haemothorax was diagnosed. The thoracic aorta wall was thin, congested and an abnormal hole in the wall was detected approximately 0.5 cm from the entrance to the diaphragm. From clotted blood collected from the thoracic cavity, 224 first stage larvae (L1) and 15 adults of Angiostrongylus vasorum were recovered alive. Also, from a blood clot found in the aorta, four adult females and 47 L1 larvae were recovered alive. Possibly, this parasite was responsible for the aortic rupture and death of the animal.
Assuntos
Aorta Torácica/parasitologia , Ruptura Aórtica/veterinária , Morte Súbita/veterinária , Doenças do Cão/parasitologia , Infecções por Strongylida/veterinária , Angiostrongylus/classificação , Angiostrongylus/isolamento & purificação , Animais , Aorta Torácica/patologia , Ruptura Aórtica/parasitologia , Autopsia/veterinária , Morte Súbita/etiologia , Diagnóstico Diferencial , Doenças do Cão/diagnóstico , Doenças do Cão/patologia , Cães , Evolução Fatal , Fezes/parasitologia , Feminino , Larva , Masculino , Infecções por Strongylida/complicações , Infecções por Strongylida/diagnósticoRESUMO
This report details the post-mortem discovery of a larva of Spirocerca lupi in the caudal thoracic aorta of a 2-year, male bush dog (Speothos venaticus). This individual presented no clinical symptoms of the parasite's presence prior to its sudden death. The cause of death was determined to be acute bleeding following the rupture of an aneurysm in the caudal thoracic aorta as a result of the parasite located there. This is the first report of S. lupi in a bush dog.