Struma Ovarii Asssociated with Pseudo-Meigs' Syndrome and Elevated Serum CA 125

Meigs' syndrome is defined as serous ascites and hydrothorax in association with a benign ovarian fibroma, thecoma, granulosa cell tumor; the ascites and hydrothorax must resolve fully after removal of the tumor. Pseudo-Meigs' syndrome refers to the same clinical features associated with other ovarian or gynaecological tumors. Although struma ovarii is associated with ascites in up to one third of cases it has only rarely been reported to cause Pseudo-Meigs' syndrome. We have experienced a case of Pseudo-Meigs' syndrome with an elevated CA 125 resulting from struma ovarii with a brief review of the concerned literatures.