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Korovessis, P. et al.

Primary osteosarcoma of the L2 lamina presenting as "silent" paraplegia: case report and review of the literature.

Primary osteosarcomas of the vertebral column are not common, and to our knowledge a total of 78 cases, mostly located in the vertebral body, have been previously reported. We report a primary osteosarcoma of the spine with an extremely rare location--the lamina of the second lumbar vertebra. The patient, a 38-year-old woman, was admitted with paraplegia of a short duration without pain. Preoperatively, the patient underwent CT scanning for staging (Enneking IIB) followed by a needle biopsy and local preoperative arterial embolization. An emergency decompressive laminectomy was performed, and stabilization was carried out using methylacrylate. The patient showed a complete neurologic recovery. Combined chemotherapy and local irradiation did not prevent tumor recurrences, which occurred 12 and 19 months after the initial intervention and were associated with recurrent neurologic impairment. The patient died 19 months after the initial presentation, while in paraplegia, from lung metastases. Based on our unique observation, it seems that in primary osteosarcomas located in the posterior elements of the spin, the symptoms are not specific, and the disease may only become manifest when the tumor is no longer resectable. When the tumor is associated with neurologic impairment, spinal canal decompression should be performed even though it does not radically resect the tumor because it significantly improves the quality of the patient's life.[1]

References

Primary osteosarcoma of the L2 lamina presenting as "silent" paraplegia: case report and review of the literature. Korovessis, P., Repanti, M., Stamatakis, M. European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society. (1995) [Pubmed]

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