To determine the biologic behavior and prognostic factors of spinal cord astrocytoma, we reviewed surgical and clinical outcomes. Due to the rarity of spinal cord astrocytoma, there is a lack of research regarding this type of tumor and malignant transformation.
We retrospectively reviewed the data from all patients on whom we performed spinal cord tumor removal between 1983 and 2014. Twenty-six patients were pathologically confirmed to have spinal cord astrocytoma or glioblastoma. Surgical extent and disease progression were confirmed by the surgeon based on operative findings, postoperative MRI, and outpatient department (OPD) follow-up.
Pain or neurological deficit was the chief complaint for all patients. With MRI studies, there is a tendency for high-grade astrocytomas to show as enhanced and heterogeneous images. Two of the low-grade astrocytomas showed malignant transformation over the course of 4 and 11 months, respectively. The overall survival (OS) for low-grade astrocytoma was 28–480 months (mean 156.38 months); the OS for high-grade astrocytoma was 1–36 months (mean 12.00 months).
Two of 12 low-grade cases showed malignant transformations at 4 and 11 months, respectively, based on pathological confirmation. With spinal cord astrocytomas, enhanced MRI results appeared similar to those of a malignant lesion. We suggest close observation and image correlation of low-grade astrocytomas, even when pathologically confirmed as low-grade. In this review, we found that histologic grade is the most important prognostic factor, although it is not always concordant with biologic behaviors.
Sun B, Wang C, Wang J, Liu A (2003) MRI features of intramedullary spinal cord ependymomas. J Neuroimag Off J Am Soc Neuroimag 13:346–351 CrossRef
Nurick S (1972) The natural history and the results of surgical treatment of the spinal cord disorder associated with cervical spondylosis. Brain J Neurol 95:101–108 CrossRef
Abel TJ, Chowdhary A, Thapa M, Rutledge JC, Geyer JR, Ojemann J, Avellino AM (2006) Spinal cord pilocytic astrocytoma with leptomeningeal dissemination to the brain: case report and review of the literature. J Neurosurg Pediatr 105:508–514 CrossRef
- A retrospective observational study on the treatment outcomes of 26 patients with spinal cord astrocytoma including two cases of malignant transformation
Seong Jun Ryu
Jong Yul Kim
Kyung Hyun Kim
Jeong Yoon Park
Sung Uk Kuh
Dong Kyu Chin
Keun Su Kim
Yong Eun Cho
Se Hoon Kim
- Springer Berlin Heidelberg
Neu im Fachgebiet Orthopädie und Unfallchirurgie
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