Sertoli-Leidig cell tumor of the ovary is a rare tumor. It accounts for 0.5 - 1% of all ovarian tumors. Sertoli-Leidig cell tumors are commonly benign and they occur in young women who desire further childrearing. Although, the treatment must be as conservative as possible. For the malign Sertoli-Leidig cell tumor, radical treatment is required. The aim of this work is the analysis of clinical, para-clinical and therapeutic aspects of these tumors.