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Diagnostic investigations

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Haematology may reveal a systemic inflammatory response. Abnormalities including neutrophilic leucocytosis with or without a left shift or leukopaenia, and thrombocytopaenia have been reported to occur in about 57% of dogs with bacterial meningoencephalomyelitis (Radaelli and Platt, 2002). Haematological abnormalities appear uncommon in cats with cerebral abscess (Costanzo et al., 2011). Serum biochemistry abnormalities may be present and reflect involvement of other organs.

MRI or CT of the brain may reveal various parenchymal and meningeal signal changes in animals with meningoencephalitis, a space-occupying mass lesion in animals with cerebral abscessation as well as abnormalities of contiguous structures (e.g. otitis media-interna, sinusitis, retrobulbar mass) representing the source of the infection. The CT and MRI characteristics of cerebral abscessation can change over time reflecting the different stages of abscess development (Costanzo et al

Canine and Feline Epilepsy

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