Struma ovarii is a: (A) Metastatic tumor, (B) Teratoma, (C) Sex cord tumor, (D) Surface epithelial tumor
Answer is B. Struma is a river in europe,along its banks endemic goitre was noted. Strauma is loosely used for goitre in europe. A Struma ovarii benign ovarian tumor is a form of teratoma that contains mostly thyroid tissue, which may develop thyrotoxicosis. Source : Bailey and love 26th edition Pg : 748