Adnexal Masses in Adolescents

Adnexal masses in adolescents, such as functional cysts, are often benign and can usually be managed expectantly since they typically regress on their own. The most common ovarian neoplasm in adolescents is a benign cystic teratoma. Both functional cysts and benign cystic teratomas are associated with ovarian torsion. Of concern, ovarian torsion requires a high level of suspicion when adolescents present with acute abdominal pain, as almost one-half of cases have no associated adnexal masses. The most common malignant adnexal masses in this age group include germ cell tumors, followed by epithelial cell tumors. Finally, ectopic pregnancy and tubo-ovarian abscesses must be considered in the differential diagnosis of adnexal mass, as delays in treatment may seriously affect an adolescent's health and future fertility. Obtaining an accurate history, including a sexual history, requires reviewing this history with the adolescent privately. Management of adnexal mases should prioritize fertility preservation. [ Pediatr Ann. 2020;49(4):e183–e187.]