An evidence-based treatment algorithm for the management of WHO Grade II and III meningiomas

Sam Q. Sun, Ammar H. Hawasli, Jiayi Huang, Michael R. Chicoine, Albert H. Kim

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83 Scopus citations

Abstract

The management of WHO Grade II "atypical" meningiomas (AMs) and Grade III "malignant" meningiomas (MMs) remains controversial and under-investigated in prospective studies. The roles of surgery, radiation therapy, radiosurgery, and chemotherapy have been incompletely delineated. This has left physicians to decipher how they should treat patients on a case-by-case basis. In this study, the authors review the English-language literature on the management and clinical outcomes associated with AMs and MMs diagnosed using the WHO 2000/2007 grading criteria. Twenty-two studies for AMs and 7 studies for MMs were examined in detail. The authors examined clinical decision points using the literature and concepts from evidence-based medicine. Acknowledging the retrospective nature of the studies concerning AM and MM, the authors did find evidence for the following clinical strategies: 1) maximal safe resection of AM and MM; 2) active surveillance after gross-total resection of AM; 3) adjuvant radiation therapy after subtotal resection of AM, especially in the absence of putative radioresistant features; and 4) adjuvant radiation therapy after resection of MM.

Original languageEnglish
Article numberE3
JournalNeurosurgical focus
Volume38
Issue number3
DOIs
StatePublished - 2015

Keywords

  • Anaplastic meningioma
  • Atypical meningioma
  • Malignant meningioma
  • Meningioma

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