PTEN and central nervous system cancer: Gendia (Antwerp, Belgium) offers the oncodiagnostics service for patient ctDNA screening over 50 genes, which includes several glioma-related genes, such as IDH1, IDH2, NOTCH1, PTEN, BRAF, EGFR, and TP53 (Plessers, 2023), but there is no description of the NGS platform used for gene sequencing.