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Extracranial Glioblastoma Metastasis: A Neuropathological Case Report.
George S Stoyanov1, Lilyana Petkova1, Bogomil Iliev2
1Pathology, Complex Oncology Center, Shumen, BGR.
Cureus
|April 7, 2023
Summary
Glioblastoma (GBM), a brain cancer, can metastasize outside the central nervous system (CNS), challenging previous medical beliefs. This rare occurrence, seen in a patient with extracranial metastasis, highlights GBM
Area of Science:
- Neuro-oncology
- Cancer Metastasis Research
- Pathology
Background:
- Glioblastoma (GBM) is an aggressive brain cancer with a poor prognosis.
- Traditionally, GBM was believed to be confined to the central nervous system (CNS).
- Extracranial metastasis from primary CNS tumors is considered rare but increasingly reported.
Observation:
- A patient with a history of GBM developed a rapidly growing neck mass.
- Histopathological and immunohistochemical analysis confirmed the neck mass as metastatic GBM.
- The patient had a prior craniotomy for GBM and remained stable for four years before metastasis.
Findings:
- The study presents a case of extracranial metastasis from a primary glioblastoma.
- Immunohistochemistry ruled out other tumor origins, confirming metastatic GBM.
- This case supports the potential for GBM to metastasize beyond the CNS.
Implications:
- Findings challenge the classical understanding of GBM's limited metastatic potential.
- Increased patient survival and improved neuro-oncological care may contribute to observing rare metastatic events.
- Further research is needed to understand the mechanisms and clinical significance of GBM extracranial metastasis.
