From a clinical case to a review of literature: Struma ovarii associated with ascites and high serum CA125

Struma ovarii is a rare dermoid tumor of the ovary (1% of all ovarian tumors and 2,7% of ovarian teratomas), with more than 50% of the overall tissue being thyroid. Approximately one third of the cases present ascites. Pseudo-Meigs syndrome has been reported in fewer than 10 cases and 5-8% present thyroid hyperfunction. However, only 26 casesreported the association of ascites or pseudoMeigs’ syndrome, elevated cancer antigen 125 and benign struma ovarii in the literature. The authors submit a case of benign struma ovarii that presented as a pelvic mass with ascites and highly elevated CA 125 serum levels and an extensive literature survey on this topic.