Document Detail

Osteochondroma in the lumbar intraspinal canal causing nerve root compression.
MedLine Citation:
PMID:  19301786     Owner:  NLM     Status:  MEDLINE    
Osteochondromas, which are benign bone tumors that usually develop on long bones, tubular bones, are rarely found in the spine. If they are located in the spinal canal, they may cause nerve root or spinal cord compression, which is a rare but potentially catastrophic manifestation of osteochondromas. In this article, we report a case of a 38-year-old man who presented with low back pain, paresthesia, and weakness of the right lower extremity aggravating gradually for 5 months. No family history of this disease can be traced. The L4-L5 level computed tomography scan showed an abnormal bony protrusion arising from the right interior wall of L5 right lamina toward the intraspinal canal. The protrusion compressed the L5 nerve root severely. T2-weighted magnetic resonance imaging (MRI) of the same level revealed that the L5 nerve root and spinal dura mater were notably compressed by the intraspinal extradural exostosis attached to the right lamina of L5. Considering differential diagnosis, lumbar facet synovial cysts must be excluded as they can also cause myeloradiculopathy with the similar mechanism. The tumor, approximately 6x7x11 mm, was identified after laminectomy of the L5 laminae. Postoperative histopathologic examination confirmed our hypothesis of benign osteochondroma. Postoperatively, the patient recovered rapidly in neurological function and was free of symptoms. Surgery is essential to this rare case. Computed tomography and MRI are helpful for the preoperatively precise indication of tumor extent and its relationships with the adjacent.
Jun Xu; Chao-Rui Xu; Hong Wu; Hai-le Pan; Jun Tian
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Orthopedics     Volume:  32     ISSN:  1938-2367     ISO Abbreviation:  Orthopedics     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-03-23     Completed Date:  2009-08-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7806107     Medline TA:  Orthopedics     Country:  United States    
Other Details:
Languages:  eng     Pagination:  133     Citation Subset:  IM    
Department of Orthopedics, the Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China.
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MeSH Terms
Lumbar Vertebrae
Osteochondroma / complications*
Radiculopathy / etiology*
Spinal Neoplasms / complications*

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