Research on pediatric brain tumors has highlighted significant advancements in understanding the molecular and clinical aspects of various tumor types. A systematic study involving 164 patients with infant-type hemispheric glioma (IHG) revealed that these tumors are predominantly hemispheric, diagnosed at a median age of 3.4 months, and are frequently non-metastatic (ref: Chavaz doi.org/10.1093/neuonc/). In the realm of medulloblastoma, a study employing single-cell multi-omics identified metabolism-linked epigenetic reprogramming as a critical driver of therapy resistance, underscoring the heterogeneity of this prevalent malignant brain tumor in children (ref: Veo doi.org/10.1038/s41467-025-65466-9/). Furthermore, the role of tumor-infiltrating immune cells in medulloblastoma was explored in a cohort of 249 patients, revealing the prognostic significance of various immune cell types, which may influence treatment outcomes (ref: Chen doi.org/10.1016/j.ebiom.2025.106043/). Additionally, the feasibility of using focused ultrasound to open the blood-brain barrier in pediatric patients with diffuse midline glioma was demonstrated, paving the way for enhanced drug delivery methods (ref: Wu doi.org/10.1126/scitranslmed.adq6645/). The impact of germline pathogenic variations on somatic alterations and patient outcomes in pediatric CNS tumors was also characterized, revealing that 23.3% of patients had germline variants, which could influence treatment strategies (ref: Corbett doi.org/10.1038/s41467-025-65190-4/). These findings collectively emphasize the need for personalized approaches in the treatment of pediatric brain tumors, taking into account genetic predispositions and tumor microenvironments.