Non-Specific increase in Ca 19.9 Level in A 17-Year-Old Patient With An Ovarian Dermoid Cyst –Case Report with Review of Literature

Mature cystic teratomas, including dermoid cysts, are among the most commonly found benign tumors of the ovary. Malignant transformation of mature cysts occurs very rarely, usually in older patients. In this article, we presented a case report of a 17-yearold girl with a mature teratoma and a non-specifically increased level of the Ca 19.9 marker. We also reviewed the current literature. Based on the gathered data and having analysed our own case, we concluded that an increase in Ca 19.9 level is independent of the size of the tumor and its bilaterality. Moreover, it is not associated with the presence of malignant tumors. To date, the highest observed concentration of Ca 19.9 in a benign dermoid cyst has been 25590 U/mL. We concluded, that an isolated increase in the level of the non-specific Ca 19.9 marker in patients with dermoid cysts is not associated with a malignant transformation. Therefore, we recommend that in young patients the excision of dermoid cysts should be performed laparoscopically regardless of the level of the marker.