(Science: oncology, tumour) Common benign brain tumours that arise from the pia-arachnoid cells of the meninges. Meningiomas tend to occur along the superior sagittal sinus, along the sphenoid ridge or in the vicinity of the optic chiasm.
See: primary brain tumour.
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... not right. Brain tumors DO metastasize. But the fact is that the person usually dies before metastasis. Plus, some benign tumors in brain, such as meningioma (hope I remember its english name right), can metastasize too. This is what a neurosurgery professor said.
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