MAGNETIC RESONANCE IMAGING FEATURES OF EXTRADURAL HEMATOMAS ASSOCIATED WITH INTER VERTEBRAL DISC HERNIATION IN A DOG
Article first published online: 19 MAY 2005
Veterinary Radiology & Ultrasound
Volume 43, Issue 4, pages 319–324, July 2002
How to Cite
Tidwell, A. S., Specht, A., Blaeser, L. and Kent, M. (2002), MAGNETIC RESONANCE IMAGING FEATURES OF EXTRADURAL HEMATOMAS ASSOCIATED WITH INTER VERTEBRAL DISC HERNIATION IN A DOG. Veterinary Radiology & Ultrasound, 43: 319–324. doi: 10.1111/j.1740-8261.2002.tb01011.x
- Issue published online: 19 MAY 2005
- Article first published online: 19 MAY 2005
- Received April 4, 2001; accepted for publication October 30, 2001.
- magnetic resonance imaging;
- disc herniation;
Myelography and magnetic resonance imaging (MRI) were performed on a 4-year-old neutered female Rottweiler with bilateral pelvic limb paresis. On the myelogram, there was extradural spinal cord compression at the level of the Tll-12 intervertebral disc. Inadvertent placement of epidural contrast medium also allowed identification of a 1-cm circular filling defect in the epidural space dorsal to the compressed spinal cord. MRI showed partial loss of the nucleus pulposus signal of the T11–12 disc, a focal signal void within the vertebral canal at T11 compatible with a free disc fragment, and extradural masses compressing the spinal cord at T10–11 and T11–12. Hemorrhage within the masses was confirmed on T2*-weighted images. A mixture of hematoma and mineralized disc material was found at surgery, and there was no histopathologic evidence of neoplasia. In this article, the appearance on MRI of hemorrhage associated with intervertebral disc herniation is discussed.