Tehran University of Medical Sciences Acta Medica Iranica 0044-6025 55 11 2018 01 02 726 729 EN Nazanin Fallah Department of Anesthesiology, Besat Hospital, Hamadan University of Medical Sciences, Hamadan, Iran. Soghra Rabiee Department of Obstetrics and Gynecology, Fatemieh Hospital, Hamadan University of Medical Sciences, Hamadan, Iran. Mohammad Fallah Department of Parasitology and Mycology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran. 2016 09 18 2017 04 15 Hydatid cysts in humans usually located in the liver or lungs primarily and some case in the other organs. Sometimes, because the trauma or medical manipulating, the cyst may be rupture and protoscoleces spillage resulted in secondary hydatid cyst. Primary dissemination of cyst to multiple organs is a rare phenomenon. Herein, we reported a 14-year-old teenage female patient with symptoms of abdominal pain with an unusual ultrasonographic and computed tomographic presentation mimicking polycystic ovarian syndrome PCOS. Due to numerous masses in the retrovesical region, she was admitted for surgical treatment in the gynecology ward, and after laparotomy, more than 50 cysts removed her internal organs. https://acta.tums.ac.ir/index.php/acta/article/view/5887 https://acta.tums.ac.ir/index.php/acta/article/download/5887/5020