metastasis of malignant intracranial meningioma to the lung: report of a case and review of the relevant literature

Background and importance: distant extracranial metastasis of meningioma is rare, and the pathophysiology of metastasis in meningioma remains a topic of debate. this study aimed to describe a patient who suffered from multiple pulmonary metastases of meningioma.case presentation: this report introduced a rare case of a 47-year-old female who presented with right hemiparesis. cranial computed tomography (ct) demonstrated a homogeneously enhanced tumor in the left temporal lobe. the patient underwent tumor resection; the pathological result was found to be world health organization (who) grade i meningothelial meningioma. recurrence of the tumor transpired after two years and a second operation was performed. who grade ii atypical meningioma was diagnosed. subsequently, the patient developed a chronic cough and her chest x-ray showed multiple lung masses. ct-guided biopsy of the right lung mass was performed. finally, pulmonary metastatic meningioma was diagnosed.conclusion: distant extracranial metastasis and malignant transformation of meningioma involve the genetic alteration of a tumor, which should be studied further.