Goldbrunner R, Stavrinou P, Jenkinson MD, Sahm F, Mawrin C, Weber DC, Preusser M, Minniti G, Lund-Johansen M, Lefranc F, Houdart E, Sallabanda K, Le Rhun E, Nieuwenhuizen D, Tabatabai G, Soffietti R, Weller M (2021) EANO guideline on the diagnosis and management of meningiomas. Neuro Oncol 23:1821–1834. https://doi.org/10.1093/neuonc/noab150

Article  CAS  PubMed  PubMed Central  Google Scholar 

Louis DN, Perry A, Wesseling P, Brat DJ, Cree IA, Figarella-Branger D, Hawkins C, Ng HK, Pfister SM, Reifenberger G, Soffietti R, von Deimling A, Ellison DW (2021) The 2021 WHO classification of tumors of the central nervous system: a summary. Neuro Oncol 23:1231–1251. https://doi.org/10.1093/neuonc/noab106

Article  CAS  PubMed  PubMed Central  Google Scholar 

Streckert EMS, Hess K, Sporns PB, Adeli A, Brokinkel C, Kriz J, Holling M, Eich HT, Paulus W, Spille DC, van Eck A, Raleigh DR, McDermott MW, Stummer W, Brokinkel B (2019) Clinical, radiological, and histopathological predictors for long-term prognosis after surgery for atypical meningiomas. Acta Neurochir (Wien) 161:1647–1656. https://doi.org/10.1007/s00701-019-03956-8

Article  PubMed  Google Scholar 

Champeaux C, Dunn L (2016) World Health Organization grade II meningiomas. Acta Neurochir (Wien) 158:921–929. https://doi.org/10.1007/s00701-016-2771-y. (discussion 929)

Article  PubMed  Google Scholar 

Piscevic I, Villa A, Milicevic M, Ilic R, Nikitovic M, Cavallo LM, Grujicic D (2015) The influence of adjuvant radiotherapy in atypical and anaplastic meningiomas: a series of 88 patients in a single institution. World Neurosurg 83:987–995. https://doi.org/10.1016/j.wneu.2015.02.021

Article  PubMed  Google Scholar 

Cao X, Hao S, Wu Z, Wang L, Jia G, Zhang L, Zhang J (2015) Treatment response and prognosis after recurrence of atypical meningiomas. World Neurosurg 84:1014–1019. https://doi.org/10.1016/j.wneu.2015.05.032

Article  PubMed  Google Scholar 

Goldbrunner R, Minniti G, Preusser M, Jenkinson MD, Sallabanda K, Houdart E, von Deimling A, Stavrinou P, Lefranc F, Lund-Johansen M, Moyal EC, Brandsma D, Henriksson R, Soffietti R, Weller M (2016) EANO guidelines for the diagnosis and treatment of meningiomas. Lancet Oncol 17:e383-391. https://doi.org/10.1016/S1470-2045(16)30321-7

Article  PubMed  Google Scholar 

Pan PC, Pisapia DJ, Ramakrishna R, Schwartz TH, Pannullo SC, Knisely JPS, Chiang GC, Ivanidze J, Stieg PE, Liechty B, Brandmaier A, Fine HA, Magge RS (2021) Outcomes following upfront radiation versus monitoring in atypical meningiomas: 16-year experience at a tertiary medical center. Neurooncol Adv 3:vda094. https://doi.org/10.1093/noajnl/vdab094

Article  Google Scholar 

Momin AA, Shao J, Soni P, Almeida JP, Suh JH, Murphy ES, Chao ST, Angelov L, Mohammadi AM, Barnett GH, Recinos PF, Kshettry VR (2021) Outcomes of salvage radiation for recurrent world health organization grade II meningiomas: a retrospective cohort study. J Neurooncol 152:373–382. https://doi.org/10.1007/s11060-021-03711-z

Article  PubMed  Google Scholar 

Sun SQ, Cai C, Murphy RK, DeWees T, Dacey RG, Grubb RL, Rich KM, Zipfel GJ, Dowling JL, Leuthardt EC, Simpson JR, Robinson CG, Chicoine MR, Perrin RJ, Huang J, Kim AH (2016) Radiation therapy for residual or recurrent atypical meningioma: the effects of modality, timing, and tumor pathology on long-term outcomes. Neurosurgery 79:23–32. https://doi.org/10.1227/NEU.0000000000001160

Article  PubMed  Google Scholar 

Unterberger A, Nguyen T, Duong C, Kondajji A, Kulinich D, Yang I (2021) Meta-analysis of adjuvant radiotherapy for intracranial atypical and malignant meningiomas. J Neurooncol 152:205–216. https://doi.org/10.1007/s11060-020-03674-7

Article  PubMed  Google Scholar 

Kondziolka D, Patel AD, Kano H, Flickinger JC, Lunsford LD (2016) Long-term outcomes after gamma knife radiosurgery for meningiomas. Am J Clin Oncol 39:453–457. https://doi.org/10.1097/COC.0000000000000080

Article  PubMed  Google Scholar 

Shepard MJ, Xu Z, Kearns K, Li C, Chatrath A, Sheehan K, Sheehan D, Faramand A, Niranjan A, Kano H, Gurewitz J, Bernstein K, Liscak R, Guseynova K, Grills IS, Parzen JS, Cifarelli CP, Rehman AA, Atik A, Bakhsheshian J, Zada G, Chang E, Giannotta S, Speckter H, Wu HM, Kondziolka D, Golfinos JG, Mathieu D, Lee CC, Warnick RE, Lunsford LD, Sheehan JP (2021) Stereotactic radiosurgery for atypical (World Health Organization II) and anaplastic (World Health Organization III) Meningiomas: results from a multicenter, international cohort study. Neurosurgery 88:980–988. https://doi.org/10.1093/neuros/nyaa553

Article  PubMed  Google Scholar 

Kowalchuk RO, Shepard MJ, Sheehan K, Sheehan D, Faramand A, Niranjan A, Kano H, Gurewitz J, Bernstein K, Liscak R, Guseynova K, Grills IS, Parzen JS, Cifarelli CP, Rehman AA, Atik A, Bakhsheshian J, Zada G, Chang E, Giannotta S, Speckter H, Wu HM, Kondziolka D, Mathieu D, Lee CC, Warnick RE, Lunsford LD, Trifiletti DM, Sheehan JP (2021) Treatment of WHO grade 2 meningiomas with stereotactic radiosurgery: identification of an optimal group for SRS using RPA. Int J Radiat Oncol Biol Phys 110:804–814. https://doi.org/10.1016/j.ijrobp.2021.01.048

Article  PubMed  Google Scholar 

Hasegawa H, Vakharia K, Link MJ, Stafford SL, Brown PD, Parney IF, Burns TC, Yan ES, Mahajan A, Laack NN, Pollock BE (2021) The role of single-fraction stereotactic radiosurgery for atypical meningiomas (WHO grade II): treatment results based on a 25-year experience. J Neurooncol 155:335–342. https://doi.org/10.1007/s11060-021-03882-9

Article  CAS  PubMed  Google Scholar 

Kim M, Cho YH, Kim JH, Kim CJ, Roh SW, Kwon DH (2020) Role of gamma knife radiosurgery for recurrent or residual World Health Organization grade II and III intracranial meningiomas. Br J Neurosurg 34:239–245. https://doi.org/10.1080/02688697.2020.1726285

Article  PubMed  Google Scholar 

Helis CA, Hughes RT, Cramer CK, Tatter SB, Laxton AW, Bourland JD, Munley MT, Chan MD (2020) Stereotactic radiosurgery for atypical and anaplastic meningiomas. World Neurosurg 144:e53–e61. https://doi.org/10.1016/j.wneu.2020.07.211

Article  PubMed  Google Scholar 

Zhang G, Zhang Y, Zhang G, Li D, Wu Z, Wang Y, Zhang J (2019) Outcome and prognostic factors for atypical meningiomas after first recurrence. J Clin Neurosci 63:100–105. https://doi.org/10.1016/j.jocn.2019.01.032

Article  PubMed  Google Scholar 

Acker G, Meinert F, Conti A, Kufeld M, Jelgersma C, Nguyen P, Kluge A, Lukas M, Loebel F, Pasemann D, Kaul D, Budach V, Vajkoczy P, Senger C (2019) Image-Guided robotic radiosurgery for treatment of recurrent grade II and III meningiomas. A Single-Center Study. World Neurosurg 131:e96–e107. https://doi.org/10.1016/j.wneu.2019.07.058

Article  PubMed  Google Scholar 

Wang WH, Lee CC, Yang HC, Liu KD, Wu HM, Shiau CY, Guo WY, Pan DH, Chung WY, Chen MT (2016) Gamma knife radiosurgery for atypical and anaplastic meningiomas. World Neurosurg 87:557–564. https://doi.org/10.1016/j.wneu.2015.10.021

Article  PubMed  Google Scholar 

Aboukais R, Zairi F, Lejeune JP, Le Rhun E, Vermandel M, Blond S, Devos P, Reyns N (2015) Grade 2 meningioma and radiosurgery. J Neurosurg 122:1157–1162. https://doi.org/10.3171/2014.9.JNS14233

Article  PubMed  Google Scholar 

Ferraro DJ, Funk RK, Blackett JW, Ju MR, DeWees TA, Chicoine MR, Dowling JL, Rich KM, Drzymala RE, Zoberi I, Simpson JR, Jaboin JJ (2014) A retrospective analysis of survival and prognostic factors after stereotactic radiosurgery for aggressive meningiomas. Radiat Oncol 9:38. https://doi.org/10.1186/1748-717X-9-38

Article  PubMed  PubMed Central  Google Scholar 

Hardesty DA, Wolf AB, Brachman DG, McBride HL, Youssef E, Nakaji P, Porter RW, Smith KA, Spetzler RF, Sanai N (2013) The impact of adjuvant stereotactic radiosurgery on atypical meningioma recurrence following aggressive microsurgical resection. J Neurosurg 119:475–481. https://doi.org/10.3171/2012.12.JNS12414

Article  PubMed  Google Scholar 

Pollock BE, Stafford SL, Link MJ, Garces YI, Foote RL (2012) Stereotactic radiosurgery of World Health Organization grade II and III intracranial meningiomas: treatment results on the basis of a 22-year experience. Cancer 118:1048–1054. https://doi.org/10.1002/cncr.26362

Article  PubMed  Google Scholar 

Attia A, Chan MD, Mott RT, Russell GB, Seif D, Daniel Bourland J, Deguzman AF, Ellis TL, McMullen KP, Munley MT, Tatter SB, Shaw EG (2012) Patterns of failure after treatment of atypical meningioma with gamma knife radiosurgery. J Neurooncol 108:179–185. https://doi.org/10.1007/s11060-012-0828-1

Article  PubMed  PubMed Central  Google Scholar 

Hanakita S, Koga T, Igaki H, Murakami N, Oya S, Shin M, Saito N (2013) Role of gamma knife surgery for intracranial atypical (WHO grade II) meningiomas. J Neurosurg 119:1410–1414. https://doi.org/10.3171/2013.8.JNS13343

Article  PubMed  Google Scholar 

Ren L, Cheng H, Chen J, Deng J, Wang D, Xie Q, Wakimoto H, Hua L, Gong Y (2023) Progesterone receptor expression and prediction of benefits of adjuvant radiotherapy in de novo atypical meningiomas after gross-total resection. J Neurosurg 139:49–58. https://doi.org/10.3171/2022.9.JNS221530

Article  CAS  PubMed  Google Scholar 

Przybylowski CJ, Suki D, Raza SM, DeMonte F (2023) Volumetric extent of resection and survival for recurrent atypical meningioma. J Neurosurg. https://doi.org/10.3171/2022.12.JNS221815

Article  PubMed  Google Scholar 

Chang WI, Kim IH, Choi SH, Kim TM, Lee ST, Won JK, Park SH, Kim MS, Kim JW, Kim YH, Park CK, Lee JH (2022) Risk stratification to define the role of radiotherapy for benign and atypical meningioma: a recursive partitioning analysis. Neurosurgery 90:619–626. https://doi.org/10.1227/neu.0000000000001904

Article  PubMed  Google Scholar 

Champeaux C, Dunn L (2016) World health organization grade II meningioma: a 10-year retrospective study for recurrence and prognostic factor assessment. World Neurosurg 89:180–186. https://doi.org/10.1016/j.wneu.2016.01.055

Article  PubMed  Google Scholar 

Ho DM, Hsu CY, Ting LT, Chiang H (2002) Histopathology and MIB-1 labeling index predicted recurrence of meningiomas: a proposal of diagnostic criteria for patients with atypical meningioma. Cancer 94:1538–1547. https://doi.org/10.1002/cncr.10351

Article  PubMed  Google Scholar 

Shinya Y, Hasegawa H, Shin M, Kawashima M, Umekawa M, Katano A, Ikemura M, Ushiku T, Ohara K, Okano A, Teranishi Y, Miyawaki S, Saito N (2023) Long-term outcomes of stereotactic radiosurgery for postoperative world health organization grade I Skull base meningioma: utility of Ki-67 labeling index as a prognostic indicator. Neurosurgery. https://doi.org/10.1227/neu.0000000000002546

Article  PubMed