Malignant struma ovarii: recurrence and response to treatment monitored by thyroglobulin levels.

A patient with malignant struma ovarii who had elevated thyroglobulin levels at the time of her original surgery was diagnosed with recurrence on the basis of progressive thyroglobulin level elevation while on thyroid suppressive therapy. Subsequent treatment with therapeutic doses of iodine-137 resulted in normalization of the elevated thyroglobulin level. The patient remains disease free on thyroid replacement. Copyright 1998 Academic Press.