Last Updated: 2013-07-01
Predominantly benign tumor of the meninges occurring at both cranial and spinal sites. They are occasionally atypical or malignant in nature.
Produces symptoms from local mass effect due to compression of neural structures or may present with seizure.
Diagnosis 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 of symptomatic meningioma is usually surgical resection, although, in some cases, local radiation therapy is used as primary treatment.
Sagittal image (1) demonstrates large extra-axial mass isointense with brain. After contrast administration, the lesion avidly enhances, as shown in the coronal image (2) and axial image (3)
From the personal library of Dr William T. Couldwell; used with permission
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