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  • Title: Canine spinal nephroblastoma: long-term outcomes associated with treatment of 10 cases (1996-2009).
    Author: Liebel FX, Rossmeisl JH, Lanz OI, Robertson JL.
    Journal: Vet Surg; 2011 Feb; 40(2):244-52. PubMed ID: 21223320.
    Abstract:
    OBJECTIVE: To report clinical outcome associated with treatment of canine spinal cord nephroblastoma (CSN). STUDY DESIGN: Case series. ANIMALS: Dogs (n=10) with histopathologically confirmed CSN. METHODS: Records of dogs with CSN were reviewed and clinicopathologic, diagnostic imaging, treatment, outcome, and survival data were collected. RESULTS: CSN resulted in clinical signs of chronic, progressive T3-L3 myelopathy in young, large breed dogs, with an overrepresentation of German Shepherd Dogs (n=4). All CSN were located between T9 and L2. Dogs treated with cytoreductive surgery (n=6) or radiotherapy (1) survived longer (median, 374 days; range, 226-560 days) than dogs treated palliatively (3; median, 55 days; range, 38-176 days). Tumors confined to an intradural-extramedullary (ID-EM) location were associated with superior survival (n=6; median, 380 days; range, 176-560 days) than tumors with intramedullary (IM) involvement (n=4; median, 140 days; range, 38-269 days). Treatment resulted in temporary improvement in neurologic function in 9 dogs, including all dogs treated surgically, but local disease progression resulted in death of 8 dogs. CONCLUSIONS: Results of this observational study suggest that surgical cytoreduction and radiotherapy are effective at improving survival in dogs with CSN, and that ID-EM tumors may be associated with a more favorable prognosis than IM neoplasms.
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