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Peer-reviewed veterinary case report

Malignant acoustic schwannoma in a dog.

Journal:
Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc
Year:
2009
Authors:
Ottinger, Therese et al.
Affiliation:
Department of Biomedical Sciences and Veterinary Public Health
Species:
dog

Abstract

A malignant schwannoma of the right acoustic nerve of a dog is described. The neoplasm was found during necropsy of a 12-year-old, spayed, female Labrador Retriever that experienced a sudden onset of severe pain in the neck and upon opening the mouth. Concurrent mild hind limb ataxia also was present. The tumor had infiltrative growth, and the spindle-shaped neoplastic cells were arranged in sheets and concentric whorls. Immunohistochemical staining of the neoplastic spindle cells was positive for S-100 antigen, neuron-specific enolase, and glial fibrillary acidic protein.

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Original publication: https://pubmed.ncbi.nlm.nih.gov/19139514/