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KMID : 0359819750040020351
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Journal of Korean Neurosurgical Society
1975 Volume.4 No. 2 p.351 ~ p.353
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A case of posterior migration of herniated lumbar nucleus pulpo´Sus over the cauda equina
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車喜中/Cha, Hee Joong
金國起/高鶴鍾/沈輔星/Kim, Geok Ki/Ko, Hak Jong/Sim, Bo Sung
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Abstract
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Recently we had experienced a case of posterior migration of herniated lumbar nucleus pulposus over the cauda equina, simulating a cord tumor clinically and radiologically.
But we could hardly find any previous case report on it.
A 35 years old man was admitted to our ward due to paraparesis on July 17, 1975.
tie had, a. history of bacll sprain five years ago with intermittently appearing mild lumbago. Two weeks prior to admission,´ there appeared severe left leg pain and soon resulted in parapa-resis.
Preoperative positive neurologic findings were paraparesis witE left side foot drop, hypesthesia on´ the left L 4,5 and S 1 dermatome and bilaterally decreased ankle and knee jerks.
Myelogram revealed complete block at L2-3 with suspicious indentation filling defect at left L4-5 interspace. C.S.F. protein value marked 738mg%.
On operation, the dural sac was compressed by a posteriorly overriding mass on it at the L2-3 level.
The mass was traced to its origin from the left side of the L2-3 interspace and into the ruptured posterior longiturdinal ligament with a narrow pedicle.
L4-5 interspace revealed a typically protruding type disc lesion.
These were composed of degenerated nucleus pulposus on histological examination.
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