Table 2 Primary extradural meningioma classification by Lang et al. 2000 [3]
From: Primary intraosseous osteolytic meningioma: a case report and review of the literature
Type | Description | Subtype |
|---|---|---|
I | Purely extracalvarial with no bony attachment | |
II | Purely calvarial | B (skull base) |
C (convexity) | ||
III | Calvarial with extracalvarial extension | B (skull base) |
C (convexity) |