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Neoplastic meningitis

Last updated: March 16, 2021

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Neoplastic meningitis refers to infiltration of the meninges by tumor cells. It affects approximately 5% of all patients with cancer. Based on the origin of the primary tumor, the condition may be categorized as carcinomatous, lymphomatous, or leukemic meningitis. Some clinical features are secondary to elevated intracranial pressure and include headaches, papilledema, and altered mental status. Treatment depends on primary tumor type and the extent of the disease. However, as neoplastic meningitis is usually a sign of advanced disease with systemic spread, the overall prognosis is poor.



MRI and CSF analysis are complementary and therefore used together to diagnose neoplastic meningitis.

Neoplastic meningitis is usually a sign of advanced disease with systemic spread, and therefore has a very poor prognosis. The exact course of treatment depends on tumor type, the extent of systemic disease, and the degree of functional impairment. Treatment typically involves a combination of the following:


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