Meningioma - Post-contrast CT scan
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Meningioma - Post-contrast CT scan
- This axial CT slice shows a uniformly enhancing mass in the posterior fossa
- The mass is closely applied to the meninges posteriorly
- (Same patient as image below)
Meningioma - Post-contrast CT scan
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Meningioma - Post-contrast CT scan
- (Same patient as image above)
- A coronal image shows more clearly the close proximity of the enhancing mass to the meninges (falx and tentorium)
Clinical information
- Postural headaches
- Cerebellar signs - unsteadiness and nystagmus
Meningioma - pre-contrast v post-contrast
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Meningioma - pre-contrast v post-contrast
- Before contrast is given this meningioma is barely visible
- Post-contrast it enhances brightly and its location next to the meningeal surface (falx) is clearly seen
- Cerebral oedema - black area next to the meningioma (asterisk) - is a finding often associated with a large meningioma
Clinical information
- Headaches - worse in the morning
- Loss of balance
- Increasingly irritable
- Increased tone on the right
Meningioma - calcified
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Meningioma - calcified
- This meningioma is heavily calcified and so is dense enough to be visible pre-contrast
- Calcification is a common finding in long-standing meningiomas
Clinical information
- The CT scan was performed to investigate the cause of cognitive decline - see the white matter low density (asterisks) indicating chronic small vessel disease
- The meningioma was asymptomatic