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Triphasic waves in a patient with glioblastoma multiforme
1Clinical Neurophysiology Lab, National Defense Medical Center, Ottawa, Ontario, Canada.
Clinical EEG (Electroencephalography)
|April 1, 1992
Summary
Glioblastoma multiforme, a rare brain tumor, can cause unusual EEG triphasic waves. This case highlights a rare association between brain tumors and these specific EEG patterns.
Area of Science:
- Neuroscience
- Neurology
- Oncology
Background:
- Glioblastoma multiforme is an aggressive primary brain tumor.
- Triphasic waves on electroencephalogram (EEG) are typically associated with metabolic encephalopathies.
Observation:
- A 57-year-old woman with biopsy-proven glioblastoma multiforme presented with right hemiparesis.
- Her EEG revealed triphasic waves with left-sided predominance.
Findings:
- Metabolic causes for the observed triphasic waves were ruled out.
- This case presents an extremely rare association between glioblastoma multiforme and triphasic EEG waves.
Implications:
- The pathogenesis linking primary brain tumors, specifically glioblastoma, to triphasic waves remains unknown.
- Further research is needed to understand this rare neurological phenomenon and its underlying mechanisms.