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A biopsy of a fifth lumbar vertebral lesion confirmed that an intracranial meningioma had metastasized 12 years after the diagnosis of the primary tumour. A literature review reports 25 cases of extracranial osseous metastases from meningioma. The mechanisms of spread are discussed as is the role of surgery in the seeding of such tumours.
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Palmer et al. (1994) studied this question.
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