Struma ovarii: hyperthyroidism in a postmenopausal woman

A rare case of struma ovarii producing hyperthyroidism in a postmenopausal woman is reported. The ovarian tumor demonstrated uptake of both (/sup 99m/Tc)pertechnetate and /sup 131/I, allowing preoperative diagnosis of the condition. In females with unexplained hyperthyroidism and low /sup 131/I uptake by the cervical thyroid gland, imaging of the pelvis should be considered