A rare case of papillary thyroid carcinoma arising in struma ovarii

Abstract

Introduction Mature cystic teratomas account for 15 to 20% of them1-4. Thyroid tissues are found in 15 to 20 percent of those2,3 but the term “struma overii” where the major proportion of the tumour comprised of thyroid tissue accounts for only 3 to 5 percent5 . These are usually benign but rarely show malignant transformation (Malignant Struma Ovarii)5 . There are no protocols or guidelines for the management of these tumours due to its rarity, and management should be individualized. This is a case of papillary carcinoma of thyroid arising in a struma ovarii which was managed by conservative surgery. We are presenting this, due to its rarity.