Background: The etiology of meningioma is largely unknown, although breast cancer has been suggested to play a role. Methods: A monoinstitutional, retrospective analysis was performed at European Institute of Oncology on 12,330 patients with breast cancer. The cumulative incidence of meningioma was estimated using the Kaplan-Meier method and the log-rank test was used to assess differences between groups. Results: In total, 33 patients with meningioma were identified from a study population of 12,330, with a 10-year cumulative incidence of meningioma of 0.37%. We did not find a significantly increased risk of meningioma among patients with breast cancer or an association between the hormonal receptor status and the risk of meningioma (P = 0.65). Conclusions: Our results do not support a role of breast cancer or endocrine treatments in meningioma development. Impact: This analysis adds new information on a debated topic. Cancer Epidemiol Biomarkers Prev; 23(1); 215-7.
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