IMAGING DIAGNOSIS—CT MYELOGRAPHY IN A DOG WITH INTRAMEDULLARY INTERVERTEBRAL DISC HERNIATION

Authors


Address correspondence and reprint requests to Marc Kent, at the above address. E-mail: mkent1@uga.edu

Abstract

A 5-year-old Chihuahua was examined for peracute pain and paraparesis. Neuroanatomic localization was consistent with a symmetric T3-L3 myelopathy. Computed tomography (CT) of the T9-L5 vertebrae was normal. Myelography disclosed attenuation of the subarachnoid space from T11 to L1, consistent with spinal cord swelling. CT following the myelogram disclosed a focal area of intramedullary iodinated contrast medium at T13-L1. At surgery, intervertebral disc material was removed from the spinal cord. Based on the findings in this patient, intramedullary disc herniation should be considered a cause for focal intramedullary contrast medium accumulation.

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