Extraneural Glioblastoma Multiforme Vertebral Metastasis

Area of Science:

• Neuro-oncology
• Neurosurgery
• Pathology

Background:

• Glioblastoma multiforme (GBM) is the most common primary malignant brain tumor.
• Extraneural metastasis from GBM is infrequent, but vertebral body involvement is a notable pattern.
• Understanding GBM metastasis is crucial given increasing patient survival rates.

Purpose of the Study:

• To review and analyze published cases of glioblastoma multiforme metastasis to the vertebral bodies.
• To summarize the clinical presentation, outcomes, and survival associated with GBM vertebral metastasis.
• To provide timely information for clinicians managing GBM patients with potential extracranial spread.

Main Methods:

• Systematic literature review of 28 published cases of GBM metastasis to the vertebra.
• Analysis of patient demographics, clinical presentation, time to metastasis, and survival data.
• Comparison of treatment approaches for intracranial versus spinal lesions.

Main Results:

• The mean age of presentation for vertebral metastasis was 38.4 years.
• Average overall survival was 26 months; survival after vertebral metastasis diagnosis was 10 months.
• Patients presented asymptomatically or with pain, weakness, or neurological deficits; many received no specific treatment for spinal metastasis.

Conclusions:

• Vertebral metastasis is a significant, albeit uncommon, manifestation of glioblastoma multiforme.
• Early recognition and management strategies for spinal metastases are important as GBM survival improves.
• Further research is needed to optimize treatment and improve outcomes for GBM patients with extracranial spread.