| Lumbar Osteochondroma Arising from Spondylolytic L3 Lamina. |
| Byung Kwan Choi, In Ho Han, Won Ho Cho, Seung Heon Cha |
| Department of Neurosurgery & Medical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea. farlateral@hanmail.net |
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| ABSTRACT |
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Osteochondromas are common, benign tumors in the long bones, but osteochondromas are rare in the vertebrae. Most vertebral osteochondromas arise from the cervical or upper thoracic spine. However, lumbar osteochondromas have rarely been reported. In this report, a rare case of a lumbar osteochondroma arising from the spondylolytic L3 lamina in a 57-year-old woman is presented. She also had a ruptured disc and lumbar canal stenosis at L4-5-S1. The osteochondroma was completely removed and a posterior lumbar interbody fusion and instrumentation were performed. Considering the rarity of osteochondromas in the lumbar vertebrae, especially the L3 vertebra, it is possible that the pre-existing lumbar spondylolysis or spondylolisthesis was one of the factors affecting the occurrence or progression of the osteochondroma. |
| Key Words:
Lumbar osteochondroma; Spondylolysis |
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