Pathways of metastatic spread in meningiomas

Abstract

Meningioma is a common intracranial neoplasm derived from meningothelial cells, and it is generally associated with a benign clinical course. In spite of this, the malignant behaviour of these tumours as the occurrence of extracranial meningioma metastases in different organs is described in the literature: lung and pleura, spine and other bones, abdominal organs, lymph nodes or even skin. The aim of this review is to analyse the pathways of metastatic spread of the intracranial meningioma tumour cells towards different organs.