Table 3. Tumor characteristics.

Median tumor size	4.5cm (2.7–8 cm)
Median tumor volume	26.95cc (3.56–97.65cc)
Poor molecular factors
IDH wild type	8 (47%)
MGMT unmethylated	5 (29%)
Median residual tumor volume	1.14cc (0.00–69.11)
Mass effect
Yes	7
No	10
Surgery
Complete	8 (47%)
Incomplete	5 (29%)
Unresectable	4 (24%)
Median T/N ratio PET before HFRT
Mean T/N ratio	2.63 (1.23–6.53)
Max. T/N ratio	3.00 (1.23–9.56)
Multifocal tumors
Unifocal	10
Bifocal	5
≥3 foci	2
Corticoids after treatment
Yes	4 (24%)
No	13 (76%)