Papillary thyroid microcarcinoma in struma ovarii

A 62-year-old woman presented abdominal pain and a rightsided pelvic mass. Ultrasonography showed a large, thickwalled, cystic ovarian mass with solid components. The patient underwent laparotomic monolateral annessectomy. Histology showed an endometriosic cyst, with a 17-cm struma ovarii containing a 3-mm single papillary thyroid carcinoma. Pelvic ultrasonography showed a normal left ovary, abdomino-pelvic CT scan showed only two renal cysts. The patient had no previous history of thyroid disease. Thyroid evaluation showed a 12 9 17 mm hypoechoic nodule with benign