Bacterial Meningoencephalitis and Ventriculitis Due to Migrating Plant Foreign Bodies in Three Dogs

Regional suppurative meningoencephalitis and ventriculitis of variable chronicity was diagnosed in three young dogs residing in Colorado. Grass awns were grossly identified in the right occipital cortex of one dog and in the right lateral ventricle of another. Intralesional plant material was micros...

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Bibliographic Details
Published in:Veterinary pathology 2005-11, Vol.42 (6), p.840-844
Main Authors: Dennis, M. M, Pearce, L. K, Norrdin, R. W, Ehrhart, E. J
Format: Article
Language:English
Subjects:
Animals
Bacteria - isolation & purification
bacterial contamination
case studies
Cerebral Ventricles - microbiology
Cerebral Ventricles - pathology
Colorado
dog diseases
Dog Diseases - microbiology
Dog Diseases - pathology
Dogs
Fatal Outcome
Female
Foreign Bodies - microbiology
Hordeum
Male
Meningoencephalitis - microbiology
Meningoencephalitis - pathology
Meningoencephalitis - veterinary
Seeds - microbiology
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Summary:Regional suppurative meningoencephalitis and ventriculitis of variable chronicity was diagnosed in three young dogs residing in Colorado. Grass awns were grossly identified in the right occipital cortex of one dog and in the right lateral ventricle of another. Intralesional plant material was microscopically evident in the dura mater overlying the right occipital cortex of the third dog. One grass awn was identified as a floret of Hordeum jabatum. In each case, aerobic culture of brain tissue identified multiple isolates of bacteria. The dogs presented with clinically variable, rapidly progressive neurologic dysfunction, including tetraplegia, depressed mentation, and episodic extensor rigidity, ataxia, circling, stupor, vocalization, and head-pressing. Encephalitis due to bacteria introduced from migrating plant foreign material is a potential sequela of intranasal, periocular, or pharyngeal foreign bodies.
ISSN:0300-9858
1544-2217
DOI:10.1354/vp.42-6-840