Spinal Tumors in 37 Dogs: Clinical Outcome and Long-Term Survival (1987-1994)

Mark S. Levy, Amy Kapatkin, Amiya K. Patnaik, G. Neal Mauldin, Glenna E. Mauldin

Research output: Contribution to journalArticlepeer-review

61 Scopus citations


The current management of dogs with spinal canal neoplasia in a large veterinary institution was evaluated. Postoperative survival time and prognostic indicators for survival were examined. Spinal neoplasms in dogs and humans also were compared. Thirty-seven cases with histologically confirmed spinal tumors were included in the study. The cervical region was affected most commonly, and 23 (62%) of 37 cases had extradural tumors. A hemilaminectomy or a dorsal laminectomy was performed in each case; three cases received adjuvant treatment. Twelve (32%) cases were euthanized at the time of surgery, and two died immediately after surgery. One dog was euthanized 20 days after surgery because of persistent clinical signs. Twenty-two cases were followed postoperatively; nine different types of primary tumors were confirmed by histological examination of tissue specimens from these 22 cases, and three cases had metastatic lesions. The median survival time of these 22 cases was 240 days. Twelve (32%) of the 37 cases had nerve-sheath tumors; the median survival time for these 12 cases was 180 days. No prognostic indicators were identified. However, median survival times of cases with benign versus malignant tumor types were 1,410 days and 180 days, respectively (p of 0.07). Four cases each had a myxoma/myxosarcoma, a tumor previously unreported in the spinal canal in dogs.

Original languageEnglish (US)
Pages (from-to)307-312
Number of pages6
JournalJournal of the American Animal Hospital Association
Issue number4
StatePublished - 1997
Externally publishedYes

ASJC Scopus subject areas

  • veterinary(all)


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