Study of oestrogen and progesterone receptors in meningiomas by a technique utilizing the binding hormones in a polymerized state.

Forty six cases of meningiomas were studied by utilizing oestrogen and progesterone hormone bound to fluroscent-iso-thiocynate (FITC) for the presence of oestrogen and progesterone receptors. Oestrogen receptors were present in 33% cases and only one fourth of these showed strong positivity. Progesterone receptors were positive in 41% cases, and more than half of these showed strong positivity. Thus this study revealed higher positivity rate for progesterone receptors than oestrogen receptors.