Parovarian cyst is a very uncommon adnexal tumor and rarely symptomatic. We report a case of symptomatic parovarian cyst managed with laparoscopic surgery in a 14 years old girl with hyperimmunoglobulin E syndrome. She visited emergency room with sudden onset of lower abdominal pain accompanying tenderness and rebound tenderness. Pelvic ultrasonography showed a cyst measuring 9.4⁓8.1 cm in size, and MRI revealed torsion of right ovary and parovarian cyst with fluid collection around pelvic cavity. We performed emergent laparoscopic salpingo-oophorectomy including parovarian cyst. The retrieval of specimen was done by using an Endobag^TM to prevent the leakage of cystic fluid. Histologically, there were hemorrhagic infarction in ovary and parovarian cyst by mesothelial origin. Postoperative course was uneventful. Parovarian cyst can be a cause of acute abdomen in girls.

Keywords: Parovarian cyst, Torsion, Laparoscopy, Acute abdomen, Children