ABSTRACT
A 16 wk old intact female Gordon setter was examined for a 2 wk history of progressive cerebellovestibular ataxia. Eosinophilia was found on complete blood count, and the remaining blood work was normal. A trial treatment with clindamycin and anti-inflammatory prednisone did not result in improvement of clinical signs; therefore, the dog was euthanized. On histopathologic examination, cross sections of a 75 µm wide nematode larva with a 5 µm cuticle, prominent lateral cords, lateral alae, and coeloemyelian musculature were identified in a focally extensive region of cerebellar necrosis. The size and morphology of the parasites was most consistent with Baylisascaris procyonis. This case highlights a rare but important zoonotic disease that should be considered as a differential diagnosis in any dog exhibiting acute, progressive central nervous system signs, and peripheral eosinophilia. The index of suspicion should be elevated in dogs with an unknown deworming history and known or suspected exposure to raccoons. Because most anthelminthics have been shown to be effective against B. procyonis, annual deworming is recommended in the at-risk population to reduce the likelihood of aberrant migration and zoonosis.
Subject(s)
Ascaridida Infections/veterinary , Ascaridoidea/isolation & purification , Central Nervous System Helminthiasis/veterinary , Dog Diseases/parasitology , Animals , Ascaridida Infections/drug therapy , Ascaridida Infections/parasitology , Central Nervous System Helminthiasis/parasitology , Central Nervous System Helminthiasis/pathology , Dog Diseases/drug therapy , Dogs , FemaleABSTRACT
The purpose of this study was to describe the use, and side effects, of a novel stereotactic radiotherapy protocol using TomoTherapy(®) in 4 dogs with confirmed or suspected primary extra-axial intracranial neoplasia. Three fractions of 8 Gy were prescribed. Acute side effects were noted in 1 dog; no late effects were noted.
Radiothérapie stéréotactique guidée par imagerie chez 4 chiens atteints de néoplasie intracrâniale. Cette étude avait pour objectif de décrire l'utilisation et les effets secondaires d'un nouveau protocole de radiothérapie stéréotactique utilisant la TomoTherapyMD chez 4 chiens atteints de néoplasie intracrâniale extra-axiale primaire confirmée ou suspectée. Trois fractions de 8 Gy ont été prescrites. Des effets secondaires aigus ont été observés chez 1 chien; aucun effet tardif n'a été observé.(Traduit par Isabelle Vallières).
