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Review

Adult primary spinal cord tumors

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Pages 1487-1495 | Published online: 09 Jan 2014
 

Abstract

Primary spinal cord tumors represent 2–4% of all neoplasms of the CNS. Primary spinal cord tumors are anatomically separable into two broad categories: intradural intramedullary and intradural extramedullary. Intramedullary tumors are comprised predominantly of gliomas (infiltrative astrocytomas and ependymomas). Resective surgery can usually be accomplished with spinal ependymomas owing to separation of tumor from spinal cord and, when complete, require no further therapy. By contrast, spinal cord gliomas infiltrate the myelon and, consequently, surgery is nearly always incomplete. Involved-field radiotherapy is most often administered after partial resection. Intradural extramedullary tumors are either peripheral nerve sheath tumors (neurofibromas or schwanommas) or meningiomas. In either instance, complete resection may be accomplished and is often curative. Radiotherapy is reserved for rare malignant variants and for patients in whom surgery is contraindicated. Chemotherapy is administered for recurrent primary spinal cord tumors without other options, that is, reoperation or re-irradiation. Problematic, however, is the lack of clinical trials in general for these CNS tumors and for spinal cord tumors in particular. Consequently, treatment is similar to that for intracranial tumors with a similar histology. Early recognition of the signs and symptoms of primary spinal cord tumors allows for early treatment, potentially minimizes neurologic morbidity and improves outcome. Primary treatment is surgery in essentially all spinal cord tumors, and predictors of outcome include preoperative functional status, histological grade of tumor and extent of surgical resection.

Financial & competing interests disclosure

The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.

No writing assistance was utilized in the production of this manuscript.

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