Bilateral sclerosing stromal tumor of the ovary in a premenarchal girl.

Sclerosing stromal tumor (SST) is a rare benign ovarian neoplasm classified as a type of sex cord stromal tumor that occurs predominantly in young patients. Several reports have described the US, CT and MR features of SST, but there have been no reports of a bilateral calcified SST in a child. We present a case of a bilateral SST of the ovary with calcification in a 12-year-old premenarchal girl and describe the US, CT, MR and pathological findings.