Association of breast carcinoma and meningioma: report of nine new cases and review of the literature.

Nine patients with diagnosed breast cancer who developed meningiomas are reported. Articles suggesting that an association of these two tumors is possible. Some authors have noted hormonal sensitivity and the presence of hormonal receptors in some meningiomas. Since breast cancer is the most common tumor in women, an association between it and meningiomas might be fortuitous. However, it is important to fully investigate brain lesions in patients with breast cancer so that potentially curable meningiomas are not considered as metastases.