Highlights & Basics
- Meningioma is a predominantly nonmalignant tumor of the meninges occurring at both cranial and spinal sites.
- Can be asymptomatic or cause symptoms from local mass effect due to compression of neural structures.
- Diagnosis is confirmed by the characteristic appearance on magnetic resonance imaging (MRI) with and without contrast enhancement.
- Asymptomatic lesions may be followed up with serial observation. Treatment options for symptomatic meningiomas include surgical resection, which provides pathologic diagnosis, and radiation therapy.
- Recurrent meningiomas may be treated with salvage therapy.
Quick Reference
History & Exam
Key Factors
Other Factors
Diagnostics Tests
Treatment Options
Definition
Epidemiology
Etiology
Pathophysiology
Images
Sagittal image (left) demonstrates large extra-axial mass isointense with brain. After contrast administration, the lesion avidly enhances, as shown in the coronal image (center left) and axial image (center right). Note the extensive edema surrounding the tumor on the T2 axial image (right)
Axial contrast-enhanced image demonstrates meningioma in the cavernous sinus on the left side
Citations
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