“…To date, approximately 110 cases of Leydig cell tumors have been described. These tumors usually occur in postmenopausal women ( Young and Scully, 2002 ), at an average age of 58, but cases in younger women ( Takeuchi et al, 1999, Marcondes et al, 1997, Horny et al, 1995, Oler et al, 1999, Bohlmann et al, 2005, Nishiyama et al, 2008, Drife et al, 1987 ( Paoletti et al, 1987, Zhang et al, 1982. In men, 7 -10 % of LCTs are malignant, these tumors are highly resistant to both radiation and chemotherapy, have a great recurrence rate after surgery, and most patients die within 2 years of the discovery of metastatic disease ( Bertram et al, 1991 ).…”