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Primary lumbar extradural hemangiosarcoma in a dog.

Matthew Paek1, Eric Glass, Marc Kent

  • 1From the Red Bank Veterinary Hospital, Tinton Falls, NJ, (M.P., E.G., C.C.); Department of Small Animal Medicine and Surgery, College of Veterinary Medicine and Surgery, University of Georgia, Athens, GA (M.K.); and Department of Anatomy, College of Veterinary Medicine, Cornell University, Ithaca, NY (A.D.).

Journal of the American Animal Hospital Association
|May 9, 2015
PubMed
Summary
This summary is machine-generated.

This study reports the first case of a dog with a primary extradural hemangiosarcoma in the lumbar spine. The golden retriever was successfully treated with surgery and chemotherapy, showing no recurrence for 15 months.

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Area of Science:

  • Veterinary Neurology
  • Canine Oncology
  • Surgical Pathology

Background:

  • Spinal tumors are a significant concern in canine neurology.
  • Extradural masses can cause progressive neurological deficits.
  • Hemangiosarcoma is an aggressive vascular tumor typically affecting soft tissues.

Purpose of the Study:

  • To report the first case of primary extradural hemangiosarcoma in the lumbar vertebral column of a dog.
  • To describe the clinical presentation, diagnostic findings, and treatment of this rare tumor.
  • To evaluate the long-term outcome following surgical and chemotherapeutic intervention.

Main Methods:

  • A 9-year-old Golden Retriever with pelvic limb paresis and incontinence underwent magnetic resonance imaging (MRI).
  • Surgical excision of the extradural lumbar mass was performed.
  • Histopathological analysis confirmed hemangiosarcoma; the dog received adjuvant chemotherapy (doxorubicin and cyclophosphamide).

Main Results:

  • MRI revealed an extradural ovoid mass compressing the lumbar spinal cord.
  • Histology confirmed hemangiosarcoma without vertebral involvement.
  • The dog remained disease-free for 15 months post-treatment, with no evidence of recurrence or metastasis.

Conclusions:

  • Primary extradural hemangiosarcoma of the canine lumbar spine is a rare but treatable condition.
  • A multimodal approach involving surgery and chemotherapy can achieve long-term remission.
  • This case highlights the importance of considering rare tumor types in spinal oncology.