Otitis media‐interna and secondary meningitis associated with<i>Corynebacterium pseudotuberculosis</i>infection in a horse

Rand, C.; Hall, Tiffany; Aleman, Monica R; Spier, Sharon J.

doi:10.1111/j.2042-3292.2011.00273.x

Cited by 15 publications

(11 citation statements)

References 15 publications

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“…Most clinicians do not perform transtypanocentesis. However, in the current report by Rand et al . (2012), the horse was showing evidence of central nervous disease that required further diagnostics (CT and CSF collection) that warranted general anaesthesia.…”

contrasting

confidence: 70%

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Equine otitis media‐interna

Slovis

2012

Equine Veterinary Education

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contrasting

confidence: 70%

“…In the report by Rand et al (2012), otitis media-interna resulting in meningitis was reported to be uncommon in the horse. Diseases affecting the ear are described according to their anatomical location.…”

mentioning

confidence: 96%

Equine otitis media‐interna

Slovis

2012

Equine Veterinary Education

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“…; Rand et al . ). To understand the prevalence of this infection better, bacteriological, serological and molecular diagnoses must be promoted to identify the causal agent and develop an improved therapeutic solution.…”

Section: Discussionmentioning

confidence: 97%

“…The prevalence of infection by this agent in horses is higher than expected, probably because it is an underdiagnosed condition in all of its previously reported clinical manifestations, many of which are uncommon, such as pericarditis, pleuritis, facial cellulitis, paniculitis, otitis mediainterna and meningitis (Farstvedt et al 2004;Perkins et al 2004;Rand et al 2012). To understand the prevalence of this infection better, bacteriological, serological and molecular diagnoses must be promoted to identify the causal agent and develop an improved therapeutic solution.…”

Section: Discussionmentioning

confidence: 99%

Identification ofCorynebacterium pseudotuberculosisisolated from muscular abscesses in two horses: First report in Mexico

Muñoz-Bucio¹,

Cortés-Pérez²,

Arellano-Reynoso³

et al. 2016

Equine Veterinary Education

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Summary Two Quarter Horse stallions from the same region in Mexico presented with pectoral abscesses and lameness. Exudate samples were taken from drained muscular abscesses and Corynebacterium pseudotuberculosis, identified by bacteriological techniques and multiplex polymerase chain reaction, was obtained in a pure isolation culture from both samples. The sequences of a hypervariable region of the rpoB gene showed 100% and 99% identity to C. pseudotuberculosis 316 biovar equi (CP003077.1) isolated from a horse. Both strains' sequences were located in the same phylogenetic cluster as other biovar equi strain sequences obtained from GenBank. Both horses responded satisfactorily to treatment, which included surgical procedures and wound management. These study cases proved the infection of Mexican horses with C. pseudotuberculosis; however, the prevalence of this pathogen remains unknown.

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“…; Koch and Witte ), otitis media or interna (Rand et al . ), fractures of the temporal bone (Pownder et al . ), encephalitis (Barton et al .…”

Section: Discussionmentioning

confidence: 99%

Congenital unilateral facial nerve paralysis in a Warmblood filly

Schön

Eser

Kircher

et al. 2017

Equine Veterinary Education

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Summary A 17‐month‐old Warmblood filly was referred to our clinic for evaluation of congenital facial nerve (FN) paralysis. Clinical examination revealed a right‐sided facial paralysis with mild masticatory muscle atrophy, mild dysphagia and exposure keratitis. Apart from the FN deficits, neurological examination of the remaining cranial nerves showed no abnormalities. Magnetic resonance imaging (MRI) examination using a 3.0 Tesla scanner showed that in comparison to the left FN, the intracranial section of the right FN between the pons and internal acoustic canal was thinner, whereas it appeared indistinct and thickened within the internal acoustic canal and facial canal. Signs of meningitis or encephalitis were not present on MRI. Cerebrospinal fluid analysis showed mild pleocytosis. The owner of the filly requested euthanasia due to the guarded prognosis. At necropsy, the intracranial section of the right FN was macroscopically thinner than the left side and within the facial canal, a 5 mm tissue stump could be identified with an absent extracranial part of the right FN. Histological examination of the brain stem showed different architecture of the left and right motor nuclei of the FN: in the left nucleus, motor neurons of a normal size and well stainable Nissl bodies were present, whereas in the right nucleus, neurons with Nissl bodies were decreased in number and size. Further, a cytoplasmic rich cell population with a nucleus size compatible with normal neurons was present. These cells were suspected to be atrophic neurons. The tissue stump within the facial canal was histologically identified as connective tissue. Unilateral malformation of the FN has not previously been described in the horse. This filly showed a right‐sided, intracranial hypoplasia accompanied by an extracranial aplasia of the FN causing complete, congenital facial nerve paralysis, which corresponded to a difference in the architecture of the affected motor nucleus of the FN.

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Otitis media‐interna and secondary meningitis associated withCorynebacterium pseudotuberculosisinfection in a horse

Cited by 15 publications

References 15 publications

Equine otitis media‐interna

Equine otitis media‐interna

Identification ofCorynebacterium pseudotuberculosisisolated from muscular abscesses in two horses: First report in Mexico

Congenital unilateral facial nerve paralysis in a Warmblood filly

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