Nonlymphoid vertebral canal tumors in cats: 11 cases (1987-1995)

Mark S. Levy From the Departments of Surgery (Levy, Kapatkin) and Pathology (Patnaik), and the Donaldson-Atwood Cancer Clinic (Mauldin), The Animal Medical Center, New York, NY 10021.

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 DVM
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Glenna Mauldin From the Departments of Surgery (Levy, Kapatkin) and Pathology (Patnaik), and the Donaldson-Atwood Cancer Clinic (Mauldin), The Animal Medical Center, New York, NY 10021.

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 DVM, MS
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Amy S. Kapatkin From the Departments of Surgery (Levy, Kapatkin) and Pathology (Patnaik), and the Donaldson-Atwood Cancer Clinic (Mauldin), The Animal Medical Center, New York, NY 10021.

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Amiya K. Patnaik From the Departments of Surgery (Levy, Kapatkin) and Pathology (Patnaik), and the Donaldson-Atwood Cancer Clinic (Mauldin), The Animal Medical Center, New York, NY 10021.

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 BVSc, MVSC

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Objective

To determine outcome of cats with nonlymphoid tumors of the vertebral canal that undergo surgery.

Design

Retrospective study.

Animals

11 cats.

Procedure

Information obtained from the medical records included signalment, tumor location, gross evaluation of completeness of surgical excision, histologic diagnosis, and survival time.

Results

Median age of cats was 12 years; all cats had negative FeLV and feline immunodeficiency virus test results. All cats underwent a hemilaminectomy or dorsal laminectomy. The tumor was located in the thoracic portion of the vertebral column in 6 cats. Six cats had intradural-extramedullary tumors. Tumors included meningioma (n = 5), malignant nerve sheath tumors (2), and meningeal sarcoma, chondrosarcoma, lipoma, and osteosarcoma (1 each). One cat was lost to follow-up, 1 cat with meningioma was alive 1,400 days after surgery, and 1 cat with a nerve sheath tumor was alive 2,190 days after surgery. Median survival time for the other 4 cats with meningioma was 180 days (range, 30 to 600 days).

Clinical Implications

Cats with nonlymphoid vertebral canal tumors that undergo surgery may have a good prognosis. (J Am Vet Med Assoc 1997;210:663–664

Objective

To determine outcome of cats with nonlymphoid tumors of the vertebral canal that undergo surgery.

Design

Retrospective study.

Animals

11 cats.

Procedure

Information obtained from the medical records included signalment, tumor location, gross evaluation of completeness of surgical excision, histologic diagnosis, and survival time.

Results

Median age of cats was 12 years; all cats had negative FeLV and feline immunodeficiency virus test results. All cats underwent a hemilaminectomy or dorsal laminectomy. The tumor was located in the thoracic portion of the vertebral column in 6 cats. Six cats had intradural-extramedullary tumors. Tumors included meningioma (n = 5), malignant nerve sheath tumors (2), and meningeal sarcoma, chondrosarcoma, lipoma, and osteosarcoma (1 each). One cat was lost to follow-up, 1 cat with meningioma was alive 1,400 days after surgery, and 1 cat with a nerve sheath tumor was alive 2,190 days after surgery. Median survival time for the other 4 cats with meningioma was 180 days (range, 30 to 600 days).

Clinical Implications

Cats with nonlymphoid vertebral canal tumors that undergo surgery may have a good prognosis. (J Am Vet Med Assoc 1997;210:663–664

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