**Abstract**

Hydatid disease is one of the important health problems in developing countries. Can affect any part of the human body, it commonly affects lungs and liver. Because of poor data and preventive measures in Sub-Saharan Africa, cystic echinococcosis (CE) is regarded as endemic disease. This is a retrospective study of children ages of 3 to 12 years admitted in pediatric surgical unit at Nelson Mandela Academic Hospital (NMAH), from April 2015 to aril 2020. We studied groups of age, sex, organs affected, treatment and complications. We studied 56 children; the group of age most affected was 5 to 10 years, females accounted for 51.8%, and male for 48.2%, lung hydatid cysts in 44.6% of cases, 41.1% had liver cysts, 8.9% of the patients had cysts in multiple locations. In 46 cases (82%), the treatment was surgical: punction-aspiration-injection and respiration (PAIR) removing the germinal layer, following in the post operatory with Albendazole and Praziquantel. In 10 cases (18//%) was given only medical treatment. Females were most affected, and the lungs were the organs most affected followed by liver.

**Keywords:** hydatidosis, pair, CE, echinococus granulosus, echinococcosis
