Adnexal torsion with a paraovarian cyst in a teenage girl.

Adnexal torsion with a paraovarian cyst in adolescent or premenarchal girls is extremely rare and very difficult to diagnose before surgery. We identified three published cases of the disorder in adolescent or premenarchal girls. Our patient, a 12.5-year-old girl, is the fourth. The cyst was excised and the adnexa untwisted at laparoscopy. High awareness and timely laparoscopy contributed to conservation of the adnexa in our young patient.