Spinal meningiomas in dogs: description of 8 cases including a novel radiological and histopathological presentation

Jose-Lopez, R. , de la Fuente, C., Pumarola, M. and Añor, S. (2013) Spinal meningiomas in dogs: description of 8 cases including a novel radiological and histopathological presentation. Canadian Veterinary Journal: Revue Veterinaire Canadienne, 54(10), pp. 948-954. (PMID:24155414) (PMCID:PMC3781425)

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Abstract

Clinical, imaging, and histological features of 8 canine spinal meningiomas, including a cervical cystic meningioma with imaging and intraoperative features of an arachnoid cyst, are described. All meningiomas were histologically classified and graded following the international World Health Organization human classification for tumors. Six meningiomas were located in the cervical spinal cord. Myelography showed intradural/ extramedullary lesions in 3/4 cases. Magnetic resonance imaging revealed hyperintense intradural/extramedullary masses on pre-contrast T1-weighted and T2-weighted images with homogeneous contrast enhancement in 7/8 cases. One dog had a cerebrospinal fluid-filled subarachnoid cavity dorsal to the cervical spinal cord. A spinal arachnoid cyst was diagnosed on imaging, but the histopathological study of the resected tissue revealed a grade I meningothelial cystic meningioma. There were no differences in outcome associated with tumor grade and surgical treatment (6/8). Cystic meningioma should be considered in the differential diagnosis of intraspinal cystic lesions, and biopsy is necessary for definitive diagnosis.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Jose-Lopez, Mr Roberto
Authors: Jose-Lopez, R., de la Fuente, C., Pumarola, M., and Añor, S.
College/School:College of Medical Veterinary and Life Sciences > School of Veterinary Medicine
Journal Name:Canadian Veterinary Journal: Revue Veterinaire Canadienne
Publisher:Canadian Veterinary Medical Association
ISSN:0008-5286

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