Adjuvant radiotherapy for WHO grade II meningiomas: the unanswered question - Report - MDSpire

Adjuvant radiotherapy for WHO grade II meningiomas: the unanswered question

  • By

  • Alice Giotta Lucifero

  • Ossama Al-Mefty

  • June 24, 2026

  • 0 min

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Clinical Report: The Role of Adjuvant Radiotherapy in Managing WHO Grade II Meningiomas

Overview

This study investigates the impact of adjuvant radiotherapy on progression-free survival (PFS) and cause-specific survival (CSS) in patients with WHO grade II meningiomas. Results indicate that adjuvant radiotherapy is associated with decreased PFS and CSS.

Background

WHO grade II meningiomas are known for their aggressive behavior and high recurrence rates. The role of adjuvant radiotherapy post-surgery remains controversial, with varying recommendations from clinical guidelines.

Data Highlights

OutcomeResultStatistical Significance
PFSReduced with adjuvant radiotherapyp<0.0001
CSS (after GTR)Less following radiotherapyp=0.0237

Key Findings

  • Adjuvant radiotherapy significantly reduced PFS after both GTR and STR.
  • CSS was also less following radiotherapy after GTR.
  • Stereotactic fractionated conformal radiotherapy and radiosurgery were independent predictors of recurrence and death.
  • Competing risk models indicated increased hazards of recurrence and mortality across all irradiation modalities.

Clinical Implications

Clinicians should consider the results when discussing treatment options with patients.

Conclusion

Adjuvant radiotherapy is associated with decreased PFS and CSS in WHO grade II meningiomas.

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