[Blockade of estradiol benzoate hyperplasia of the adenohypophysis with Deprenon and lisuride - histological findings].

Three-week administering of Estradiolbenzoate to male rats results in hyperplasia of adenohypophysis with increase of Orange G slightly positive cells and chromophobe cells, loosening of structure giving a trabecular picture, and stressed vascularization. Simultaneous administering of Ergoline compounds (Deprenon, Lisuride) rather limited the transformation. However, the differentiation of single pituitary cells due to Estradiolbenzoate remained substantially uninfluenced.