Imaging features of a vertebral intra- and extramedullary arteriovenous malformation causing cervical myelopathy in a mature dog
Abstract
A nine-year-old, female, spayed German shorthaired Pointer was referred with a one-week clinical history of cervical hyperesthesia and mild ambulatory tetraparesis which did not improve with corticosteroid therapy. A computed tomography scan revealed a severe cervical vertebral arteriovenous malformation causing spinal cord compression and vertebral atrophy, as well as an abnormal origin of the left subclavian artery. Additional magnetic resonance imaging confirmed the presence of an intramedullary component of the ectatic vessels.
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