| HGG | high-grade gliomas |
| PFS | progression-free survival |
| OS | overall survival |
| 5-ALA | 5-aminolevulinic acid |
| FS | fluorescein sodium |
| PpIX | protoporphyrin IX |
| EOR | extent of resection |
| GTR | gross total resection |
| PPV | positive predictive value |
| NPV | negative predictive value |
| CRET | complete resection of enhancing tumor |
| FGS | fluorescence-guided surgery |
| iMRI | intraoperative Magnetic Resonance Imaging |
| EMEA | European Medicines Agency |
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