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5-ALA fluorescence in indeterminate grade gliomas
Michael Müther1, Walter Stummer1
1Department of Neurosurgery, University Hospital Münster, Germany.
Neurosurgical Focus: Video
|October 26, 2022
Summary
5-Aminolevulinic acid (5-ALA) fluorescence aids in accurate glioma grading and can serve as a prognostic marker in indeterminate-grade gliomas, improving surgical precision and patient outcomes.
Area of Science:
- Neurosurgery
- Oncology
- Medical Imaging
Background:
- 5-Aminolevulinic acid (5-ALA) is an established tool for glioblastoma surgery.
- Emerging evidence suggests 5-ALA's utility in lower-grade gliomas (grades II and III).
- Predicting 5-ALA fluorescence in these patients remains challenging.
Purpose of the Study:
- To report a case of indeterminate-grade glioma.
- To highlight the utility of 5-ALA fluorescence in this patient subgroup.
- To identify potential applications of 5-ALA in glioma grading and prognosis.
Main Methods:
- Case report of an indeterminate-grade glioma.
- Intraoperative use of 5-ALA for fluorescence-guided surgery.
- Analysis of tissue sampling and fluorescence as prognostic indicators.
Main Results:
- 5-ALA-guided tissue sampling prevented underestimation of the glioma's true grade.
- Intraoperative 5-ALA fluorescence was observed in the indeterminate-grade glioma.
- Fluorescence intensity and pattern may correlate with prognosis.
Conclusions:
- 5-ALA fluorescence can be a valuable tool in indeterminate-grade gliomas.
- It aids in accurate pathological grading, preventing diagnostic errors.
- Intraoperative fluorescence may serve as a prognostic biomarker for glioma patients.
