The Application segment of the Oligodendroglioma Treatment market is divided into surgical resection, radiation therapy, chemotherapy, targeted therapy, and immunotherapy. Surgical resection, accounting for roughly 30% of market revenue, dominates due to its curative intent in eligible patients and the high cost of operative suites and peri‑operative care. Radiation therapy follows with an estimated 25% share, driven by its role as adjuvant treatment and the capital intensity of linear accelerators. Chemotherapy contributes about 20%, reflecting the widespread use of temozolomide and PCV regimens, as well as recurring drug procurement expenses. Targeted therapy, representing 15%, is expanding as molecular profiling identifies actionable mutations, prompting higher pricing for agents such as IDH inhibitors. Immunotherapy, though still emerging, captures the remaining 10% of the market, propelled by clinical trials and premium pricing of checkpoint inhibitors. This Oligodendroglioma Treatment segmentation underscores how each application directly influences overall market size through distinct cost structures and adoption rates.