ABSTRACT
The Malignant Struma ovarii (SO) is a thyroid carcinoma generated in a mature teratoma, constitutes 0.8-3percent of ovarian tumors. Then, two cases will be reviewed. Case 1: 46 year old woman with no known morbid consulted for right iliac fossa pain requiring exploratory laparotomy with findings of an ovarian tumor, the biopsy reported mature ovarian teratoma SO type microfocus papillary thyroid carcinoma. Case 2: 59 year old female with a history of dyslipidemia and knee osteoarthritis in controls in gynecology since 2010 on the right adnexal mass of cystic type of 5x3 cm. The study showed only free fluid dissemination ovarian, oofectomía bilateral was performed and biopsy showed minimally invasive follicular carcinoma (2.8 cm) developed by SO, serosa without invasion of the ovary. Is derived of endocrinology and the study showed: thyroid stimulating hormone (TSH) 3.3 uIU/ ml; Peroxidase antibody (anti-TPO) and thyroglobulin antibody (antiTG) negative. Ultrasonography exhibited thyroid nodule of 0.8 x 0.6 cm, hipovascularizado with normal thyroid cintigraphy and cytology negative for neoplastic cells in fine needle aspiration (FNA). Discussion: Its a rare condition, which requires a multidisciplinary approach to treatment...