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Abstract

The nuclear trial sign in thoracic herniated disks.

E E Awwad, D S Martin and K R Smith
American Journal of Neuroradiology January 1992, 13 (1) 137-143;
E E Awwad
Department of Radiology, St. Louis University Medical Center, MO 63110-0250.
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D S Martin
Department of Radiology, St. Louis University Medical Center, MO 63110-0250.
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K R Smith Jr
Department of Radiology, St. Louis University Medical Center, MO 63110-0250.
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Abstract

PURPOSE AND METHODS Postmyelography CT studies of 84 patients with 114 thoracic herniated disks were reviewed for endplate irregularity, sclerosis, and/or disk-space calcification that could suggest a migratory path of the herniated fragment.

RESULTS Abnormal straight or curvilinear densities (the "nuclear trial sign") were present at the level of the disk or endplate in 46% of the cases. MR studies of 35 thoracic herniated disks were also examined. Similar changes were likewise present in 44%.

CONCLUSION The frequent occurrence of this finding in the mid and lower thoracic spine renders it a useful secondary sign for thoracic herniated disks, although false positives do occur.

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American Journal of Neuroradiology
Vol. 13, Issue 1
1 Jan 1992
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The nuclear trial sign in thoracic herniated disks.
E E Awwad, D S Martin, K R Smith
American Journal of Neuroradiology Jan 1992, 13 (1) 137-143;

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The nuclear trial sign in thoracic herniated disks.
E E Awwad, D S Martin, K R Smith
American Journal of Neuroradiology Jan 1992, 13 (1) 137-143;
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