Factors Associated with Adjuvant Radiotherapy Use After Simpson Grade I Resection of WHO Grade 2 Meningioma: A Single-Center Retrospective Cohort Study

Background

Adjuvant radiotherapy (RT) after gross-total resection of World Health Organization (WHO) grade 2 meningioma remains an individualized decision in the absence of definitive randomized evidence. We aimed to identify the clinical, radiological, and pathological factors associated with observed adjuvant RT allocation after Simpson grade I resection and to evaluate the discriminatory performance of proliferative biomarkers in real-world multidisciplinary practice.