期刊
NEURO-ONCOLOGY
卷 19, 期 10, 页码 1298-1307出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/neuonc/nox071
关键词
brain invasion; grading; meningioma; prognosis; resection
资金
- Deutsche Forschungsgemeinschaft [MA2530/6-1, MA2530/8-1]
- Wilhelm Sander-Stiftung [2014.092.1]
- Deutsche Krebshilfe [111853]
- Stiftung Neurochirurgische Forschung der Deutschen Gesellschaft fur Neurochirurgie
- Wilhelm Tonnis Stiftung der Deutschen Gesellschaft fur Neurochirurgie
- Maria Moller Stiftung
With the release of the 2016 edition of the World Health Organization ( WHO) Classification of Central Nervous System Tumors, brain invasion in meningiomas has been added as a stand-alone criterion for atypia and can therefore impact grading and indirectly adjuvant therapy. Regarding this rising clinical importance, we have reviewed the current knowledge about brain invasion with emphasis on its implications on current and future clinical practice. We found various definitions of brain invasion and approaches for evaluation in surgically obtained specimens described over the past decades. This heterogeneity is reflected by weak correlation with prognosis and remains controversial. Similarly, associated clinical factors are largely unknown. Preoperative, imaging-guided detection of brain invasion is unspecific, and intraoperative assessment using standard and new high-magnification microscopic techniques remains imprecise. Despite the increasing knowledge about molecular alterations of the tumor/brain surface, pharmacotherapeutic options targeting brain invasive meningiomas are lacking. Finally, we summarize the impact of brain invasion on histopathological grading in the WHO classifications of brain tumors since 1979. In conclusion, standardized neurosurgical sampling and neuropathological analyses could improve diagnostic reliability and reproducibility of future studies. Further research is needed to improve pre- and intraoperative visualization of brain invasion and to develop adjuvant, targeted therapies.
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