Sclerosing stromal tumor in an accessory ovary

Background. An accessory ovary is an uncommon congenital anomaly of the female reproductive tract. Tumors arising in ectopic ovaries are extremely rare. Case. This 18-year-old woman had a pelvic tumor attached to the right ovary which was solid cystic and lobulated and histologically and immunohistochemically showed the appearances of sclerosing stromal tumor, a benign entity. Conclusion. We present the first reported case of sclerosing stromal tumor that arose in an accessory ovary. (C) 2001 Academic Press.