A 19-year-old healthy woman was referred in a gynecological surgery unit for the management of a giant paraovarian cyst. Ultrasound and tomodensitometry revealed a 36 x 25 cm intra abdominal mass. Paraovarian cyst being usually benign, we decided on a mini invasive surgery by laparoscopy. After this exploration, our patient underwent a very short suprapubian laparotomy. Pathologic result was a benign paraovarian cyst. Despite the unusual size of this tumor, first laparoscopic investigation permitted to avoid a median laparotomy.