86 (5) pp 297-302

Clinical presentation and magnetic resonance imaging findings in a juvenile dog with unilateral hydrocephalus and presumed periventricular encephalitis

A four-month-old English bulldog presented with an acute onset of facial twitching, headtilt and abnormal mentation. Neurological examination was consistent with a multifocal brainlesion. Hematology and biochemistry were unremarkable and MR imaging of the brain revealedmarked enlargement of the left lateral ventricle with associated calvarial enlargement andperiventricular T2W and fluid-attenuated inversion recovery (FLAIR) lesions with moderatecontrast enhancement. Cerebrospinal fluid (CSF) analysis revealed a moderate mixedmononuclear pleocytosis and infectious disease testing returned negative. The diagnosis of leftunilateral internal hydrocephalus and presumed periventricular encephalitis was made. Thepatient was treated with prednisolone and phenobarbitone with successful outcome despitethe poor prognosis. This is the first report of unilateral hydrocephalus and periventricularencephalitis with MR imaging in a dog.

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Case report(s)