Meningioma

Meningiomas are the second most common primary tumor of the central nervous system, arising from the arachnoid “cap” cells of the arachnoid villi in the meninges. These tumors are usually benign in nature; however, they can be malignant.

Meningiomas are readily visualized with contrast CT, MRI with gadolinium, and arteriography, all attributed to the fact that meningiomas are extra-axial and vascularized. CSF protein is usually elevated if lumbar puncture is attempted.


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