[Granulosa cell and thecacell tumors in 25 cases (author's transl)].

Granulosa cell tumors are derived from specific ovarion stroma and have the ability to produce hormones. In the 25 cases of granulosa cell tumors no concommitant endometrial carcinoma was found. Because of the varying degree of malignancy tumors which contain granulosa cells must be differentiated from pure theca cell tumors. Granulosa cell tumors are frequently malignant. Theca cell tumors are benign. The treatment of granulosa cell tumors is fundamentally the same as that of epithelial cancers of the ovary. The treatment of theca cell tumors is conservative.