Peritoneal hydatid cysts are rare in children even in endemic areas. The primary or secondary origin of this site remains controversial, especially in children. Secondary peritoneal hydatid cysts are mainly the result of spontaneous or traumatic rupture of concomitant liver cysts or the leakage of cystic content during surgery. The purpose of our study is to present the largest case series of peritoneal hydatidosis in children. In addition, we aimed to assess the clinical and paraclinical findings as well as the management of echinococcosis at this location in children. The present case series is a study of ten children with peritoneal hydatid cysts, who underwent surgical intervention between 2013 and 2018 in the Pediatric Surgery Department, University of Monastir (Monastir, Tunisia). The mean age of the children was six years. All children presented abdominal pain, and underwent ultrasonography and contrast-enhanced computed tomography of the abdomen. Two patients had been operated on for lung hydatid cysts six months prior to the study. In two cases, radiologic investigations revealed the presence of an uncomplicated hepatic hydatid cyst located in segments II and IV. All patients underwent surgery, of which four underwent laparoscopy. Post-surgery, all patients received albendazole for three months, and the follow-up period was uneventful. Currently, all patients are in good health. Peritoneal hydatid disease is frequently secondary to the rupture of a primary hepatic cyst. Diagnosis is performed by abdominal ultrasound, computed tomography, and a positive serology result. Open or laparoscopic excision can be combined with medical treatment.
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