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Histologically, chordomas are not nervous tissue tumors but do occur along the neuroaxis and are thus sometimes called central nervous system (CNS) tumors. —Preceding unsigned comment added by 152.3.75.192 (talk) 02:42, 21 September 2007 (UTC)[reply]
can I add tumors to this page , please help--DerekvG (talk) 21:38, 15 March 2010 (UTC)
I've added Hemangiopericytoma to the group4 tumors of the meninges, Hemangiopericytoma can occur in the meninges, is very difficult to distinguish from anaplastic meningioma (grade III/IV) --DerekvG (talk) 12:13, 18 September 2011 (UTC)[reply]