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Published on: January 17, 2018
[Parasagittal meningioma simulating an extracerebral mass. Report of a case]
Abstract:
The case of a fronto-parietal parasagital "in plaque" meningioma which growed mainly in the subdural space is reported. The atipical angiographic picture of a subdural hematoma is described with comments on the mechanisms that occasioned this radiological appearance. The rarity of this finding and the need of angiographycal study of both internal and external carotid systems by the intracranial meningiomas are emphasized.
Insights
A rare case of a fronto-parietal parasagital meningioma growing in the subdural space presented an atypical subdural hematoma appearance on angiography. This highlights the importance of comprehensive carotid artery imaging for intracranial meningiomas.
Area of Science:
- Neurology
- Neurosurgery
- Radiology
Background:
- Meningiomas are tumors arising from the meninges.
- Parasagittal meningiomas are a common subtype, typically located along the superior sagittal sinus.
- Subdural growth is an uncommon presentation for meningiomas.
Observation:
- A case of a fronto-parietal parasagital meningioma with significant subdural extension is presented.
- The tumor exhibited an atypical angiographic appearance, mimicking a subdural hematoma.
- The radiological features and potential causative mechanisms are discussed.
Findings:
- The study reports a rare instance of an "in plaque" meningioma predominantly occupying the subdural space.
- Angiography revealed an unusual pattern consistent with a subdural hematoma.
- The diagnostic challenges posed by this atypical presentation are highlighted.
Implications:
- This case underscores the variability in meningioma presentation and imaging characteristics.
- It emphasizes the necessity of evaluating both internal and external carotid artery systems in the diagnostic workup of intracranial meningiomas.
- Comprehensive vascular imaging is crucial for accurate diagnosis and surgical planning.
