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Optic nerve astrocytoma in a dog.

Orr Rozov1, Pablo E Piñeyro2, Kurt L Zimmerman1

  • 1Department of Biomedical Sciences and Pathobiology Virginia-Maryland College of Veterinary Medicine Virginia Tech Blacksburg Virginia 24061-0442 USA.

Clinical Case Reports
|September 21, 2016
PubMed
Summary

Optic nerve astrocytomas are rare intracranial neoplasms in dogs. Consider this diagnosis in dogs with vision loss and specific ocular findings.

Keywords:
Neurologyoncologyophthalmologyveterinary

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Area of Science:

  • Veterinary Neurology
  • Ophthalmology
  • Canine Oncology

Background:

  • Intracranial astrocytomas are uncommon canine brain tumors.
  • Optic nerve astrocytomas represent a rare subset of these neoplasms.

Observation:

  • Canine patients may present with vision loss, retinal detachment, or ocular masses.
  • Histopathology reveals infiltrative glial cells, often fusiform to polygonal in shape.
  • Glomeruloid vascular proliferation may be associated with these tumors.

Findings:

  • Optic nerve astrocytoma should be a differential diagnosis for canine vision impairment.
  • Characteristic histopathologic features aid in diagnosis.

Implications:

  • Early consideration of optic nerve astrocytoma can improve diagnostic timelines.
  • Accurate diagnosis is crucial for appropriate patient management and prognosis in veterinary oncology.