Meningiomas
48 important questions on Meningiomas
Approximately what fraction of meningiomas are WHO GRADE 1?
Ki-67 / MIB-1 is discussed at tumor board. Is it officially part of WHO grading?
Brain invasion upgrades a meningioma to what WHO grade?
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In meningiomas, “integrated diagnosis” relies most on what components?
Name 5 imaging features supporting an EXTRA-AXIAL meningioma.
What is the CSF CLEFT SIGN?
Extra-axial lesions typically form an obtuse or acute angle with dura?
Dural tail: is it specific for meningioma?
Dural tail represents what 2 possibilities?
Typical CT density of meningioma relative to cortex?
Typical MRI T2 signal relative to cortex (as described here)?
List the spectrum of bone reactions with meningioma (most complete).
Most classic bone reaction associated with meningioma?
What is TRANSDIPLOIC EXTENSION?
What’s an INTRAOSSEOUS MENINGIOMA and key mimic?
Two most common meningioma locations?
Where is a FALCOTENTORIAL meningioma located?
Most common site for INTRAVENTRICULAR meningioma?
Differentiate OLFACTORY GROOVE vs PLANUM SPHENOIDALE meningioma by location.
Tuberculum sellae meningioma classically causes what visual symptom pattern?
Sphenoid wing meningioma: what wording adds surgical value?
Why does “medial sphenoid wing” matter?
What skull base structure makes some meningiomas essentially unresectable?
Optic nerve sheath meningioma is located where relative to the optic nerve?
Two growth patterns of optic nerve sheath meningioma mentioned?
Key intrinsic optic nerve tumor (contrast diagnosis)?
Imaging clue favoring vestibular schwannoma over meningioma in CPA?
Clinical clue favoring CPA meningioma over schwannoma (from talk)?
Other jugular foramen tumor differential to remember?
What extension pattern supports jugular foramen meningioma?
Foramen magnum meningioma—what critical structure is at risk?
Why assess venous sinuses in meningioma?
Surgical pearl: why is complete sinus occlusion sometimes “easier”?
What’s the risk if surgeons peel tumor off a partially involved sinus?
Meningiomas can engulf/occlude arteries (e.g., ICA). Why might patients not present with acute infarct?
Does edema extent correlate with meningioma size?
Give 4 mechanisms of edema in meningioma.
What does “pial supply” imply in meningiomas?
What is the “mother-in-law sign,” and what tumor is it associated with?
Why is pre-op embolization less commonly done now (per talk)?
On CTA, what might a meningioma show?
Name 3 foramina/paths meningiomas commonly extend through.
Why avoid calling hemorrhagic/cystic/calcified meningiomas “atypical”?
Two classic settings for MULTIPLE MENINGIOMAS?
Radiation-induced meningiomas tend to be what compared with typical?
NF2 classically includes what key bilateral finding?
NF2 mnemonic given and what it stands for?
Imaging clues that may suggest higher grade behavior (Grade 2/3) per notes?
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