Metastases of carcinoma to intracranial meningioma: report of two cases and review of the literature.

Two cases of metastases from carcinoma to intracranial meningioma are presented. In the first case the presence of the malignant tumor was unsuspected at the time of intracranial operation. In the second case, a breast cancer had been previously removed, and unusual cranial computed tomographic findings were noted. The literature on metastases to intracranial tumors is reviewed, and the association of meningioma and carcinoma of the breast is emphasized.