… grading of meningiomas has prognostic and sometimes therapeutic implications, but diagnostic
criteria for atypical meningioma are vague, and the significance of brain … meningiomas …

… Our understanding of meningioma classification, grading, and … Falcine meningiomas attach
to the dense fibrous tissue of … The issue of brain invasion in meningioma grading has been a …

… grading and classification of meningiomas did not undergo major revisions, except for the
introduction of brain … or slightly hypodense compared with brain tissue. CT is more sensitive …

… a grade I meningioma (3.4%). (p < 0.001) In re-evaluation of the meningioma cases, we found
an increase in tumor grading … an association between high grade and brain tissue in tumor …

… Questions still surround the issue of tumor invasion of brain. Grade I meningiomas can
invade surrounding tissues such as bone and soft tissue; although this makes resection more …

… The aim of this study was to reassess the incidence of atypical (grade II) meningiomas over
… Simpson grade II or higher subtotal resection [7], or the meningioma is invading brain tissue …

… The number of grade II meningiomas increased when using … definition of brain infiltrating
meningiomas as atypical (grade II). … macrophages in the meningioma tissue may reflect various …

… The presence of infiltrative growth of meningioma cells into central nervous system tissue has
… Another retrospective analysis of 49 grade II meningiomas reviewed the prognostic impact …

… The interface between the tumor and the brain … meningioma and brain parenchyma and an
unclear peritumoral rim suggests tumor adhesion and invasion of the surrounding brain tissue…

… They concluded that ER in meningioma tissue is … Meningiomas growing anterior to the
brain stem have been a major … of dural attachments; Grade IV, subtotal removal; and Grade V, …