Abstract

Mature cystic teratomas (MCT) are composed of a mixture of tissues derived from all three germ layers and are the most common ovarian tumor in both adolescents and women of reproductive age. Although most of these tumors are benign, malignant transformation of MCT occurs only in about 1-2% of cases. Any of the tissues within the MCT, can change malignant transformation. Struma ovarii is a rare ovarian tumor, reported as %0.5-1 of all ovarian masses and

Key words: Mature Cystic Teratoma; Struma Ovarii; Thyroid Papillary Carcinoma; Malign Transformation