IMAGING DIAGNOSIS-MAGNETIC RESONANCE IMAGING OF DIFFUSE LEPTOMENINGEAL OLIGODENDROGLIOMATOSIS IN A DOG WITH "DURAL TAIL SIGN".

A case of diffuse leptomeningeal oligodendrogliomatosis affecting the brain and spinal cord of a dog is presented. A 7.5-year old, male neutered Staffordshire bull terrier presented for evaluation of a chronic history of tetraparesis and seizures, with a multifocal neuroanatomical localization was determined.

Evaluation of cytospin precision in low cellularity canine cerebrospinal fluid.

The cell count and differential of cerebrospinal fluid (CSF) cytologic examination classify CSF as inflammatory or not. The cytospin cell yield is related to cell count, but to our knowledge a relationship has not been characterized and cytospin precision is undocumented in any species. The objective of our study was to calculate intra-assay precision of cellular yield and differential on cytocentrifuged canine CSF, determine the factors that may affect precision, and predict the number of cytospins necessary to confirm mild neutrophilic pleocytosis.

Denervation of the Tensor Veli Palatini Muscle and Effusion in the Tympanic Cavity.

An English springer spaniel was presented for right-sided atrophy of the muscles of mastication, analgesia and paralysis of the face, and vestibular dysfunction. Neurological signs were consistent with a lesion involving the pons and rostral medulla resulting in deficits in the function of the trigeminal, facial, and vestibular nerves. MRI disclosed a right-sided extraparenchymal mass consistent with a trigeminal nerve sheath neoplasm that was compressing and invading the pons and medulla.

Pharmacokinetic evaluation of immediate- and extended-release formulations of levetiracetam in dogs.

Objective: To compare the pharmacokinetics of various formulations of levetiracetam after oral administration of a single dose to healthy dogs.

Animals: 6 neurologically normal mixed-breed dogs.

Procedures: A crossover study design was used.

Clinical features of idiopathic inflammatory polymyopathy in the Hungarian Vizsla.

Background: A retrospective study of the clinicopathological features of presumed and confirmed cases of idiopathic inflammatory polymyopathy in the Hungarian Vizsla dog and guidelines for breeding.

Results: 369 medical records were reviewed (1992-2013) and 77 Hungarian Vizslas were identified with a case history consistent with idiopathic inflammatory polymyopathy. Inclusion criteria were: group 1 (confirmed diagnosis); histopathology and clinical findings compatible with an inflammatory polymyopathy and group 2 (probable diagnosis); clinical findings compatible with a polymyopathy including dysphagia, sialorrhea, temporal muscle atrophy, elevated serum creatine kinase (CK) activity, and sufficient clinical history to suggest that other neuromuscular disorders could be ruled out.

Ischemic stroke in Greyhounds: 21 cases (2007-2013).

Objective: To determine the prevalence of ischemic stroke in Greyhounds and determine whether affected dogs had coagulation abnormalities and hypertension.

Design: Multi-institutional, retrospective study.

Animals: 21 dogs.

Traumatic pneumocephalus in a dog.

Case Description: A 17-month-old dog was evaluated because of progressive tetraparesis. The dog had a history of craniofacial trauma at 2 months of age.

Clinical Findings: Results of a neurologic examination were suggestive of a lesion localized to the medulla.