[Intra cranial meningiomas and long term use of cyproterone acetate with a conventional dose in women. A report of two cases of tumor decrease after treatment withdrawal].

The action of synthetic progestogens, prescribed at a conventional dose in women, for a meningioma, is still poorly understood, and could be related to progesterone receptors. We report two cases illustrating multiple meningiomas with stabilization or tumor reduction after withdrawal of cyproterone acetate originally prescribed for a long term period. We also review the influence of synthetic progestogens on meningiomas, particularly the impact of treatment withdrawal.