Struma Ovarii: A Rare Unpredictable Ovarian Teratoma Case Series and Review of Literature
Struma ovarii is a rare ovarian teratoma of monodermal variant constituting 1-4% of all benign ovarian teratoma.Any ovarian teratoma is called struma ovarii only when it consists of at least 50% thyroid tissue.Only about 8% of struma ovarii cases present with clinical and biochemical features of thyrotoxicosis which is presumed to be due to ectopic