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Intramedullary spinal nephroblastoma in a mixed breed dog
Michihito Tagawa1, Genya Shimbo1, Mizuki Tomihari2
1Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan.
The Journal of Veterinary Medical Science
|May 19, 2020
Summary
A dog with hindlimb paresis was diagnosed with a spinal nephroblastoma. Treatment including surgery and radiation therapy led to lesion disappearance and improved mobility.
Area of Science:
- Veterinary Neurology
- Canine Oncology
- Comparative Pathology
Background:
- Spinal cord tumors are a significant cause of neurological dysfunction in dogs.
- Nephroblastomas, while rare in dogs, can occur as primary or metastatic lesions.
- Intramedullary spinal cord tumors present unique diagnostic and therapeutic challenges.
Observation:
- A 1-year-old mixed-breed dog presented with progressive hindlimb paresis.
- Neurological examination localized the lesion to the thoracic to lumbar spine.
- Magnetic resonance imaging (MRI) confirmed an intramedullary lesion at the L1-L2 vertebral level.
Findings:
- Cytoreductive surgery followed by palliative radiation therapy was performed.
- Histopathological examination confirmed the diagnosis of nephroblastoma.
- Post-treatment MRI showed complete resolution of the spinal lesion.
- The dog demonstrated significant improvement in gait and remained alive for 16 months with minor residual deficits.
Implications:
- This case highlights the successful management of an intramedullary spinal nephroblastoma in a dog.
- Multimodal treatment including surgery and radiation can achieve long-term remission and functional recovery.
- Early diagnosis and intervention are crucial for improving outcomes in canine spinal cord tumors.
