Ovarian dermoid cyst with malignant potential

Abstract

The incidence of dermoid cyst accounts for approximately 20% of all ovarian tumours. They occur more commonly in reproductive age group of women and are usually unilateral. Oophorectomy is the operative procedure of choice and is usually curative. Malignant transformation of the mature elements within the dermoid cyst is a rare complication, occurring in only 1–2% of cases, with squamous cell carcinoma being the most common type (making up to 80–90%), followed by adenocarcinoma. The Malignant transformation is mostly seen in postmenopausal women. We present a case of Ovarian Dermoid cyst with malignant transformation to Squamous cell carcinoma in a 40 yr old female, which was confirmed by Immunohistochemistry. This case has been presented because of the rarity of malignant transformation at that young age.