Fig. 4
From: Solitary pulmonary metastasis after meningioma surgery of the head: a case report
Overall survival after the first pulmonary metastasectomy for lung metastasis of cranial meningioma based on the integration of the reported cases (n = 30) [5, 6, 15, 17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38]. a The 1-, 2-, and 5-year overall survival rates based on the integration of all reported cases (n = 30) were 96.7%, 80.7%, and 40.4%, respectively. b WHO grade III meningioma was more likely to be associated with worse overall survival than WHO grade I meningioma (P = 0.082). The overall survival did not significantly differ between patients with WHO grade I and II meningioma (P = 0.67) and between patients with WHO grade II and III meningioma (P = 0.29, 0.082)