**7. Conclusions**

The incidence of hydatid disease in children increase with age.

The organs more frequently involved were liver and lungs.

As can be affected for hydatid cyst in the same patient lung and liver, we recommend that when a hydatid cyst of the liver is diagnosed a chest x-ray should be done to rule out lung involvement specially in endemic regions.

The most common cause of human hydatid cyst is the Echinococcus granulosus as it was diagnosed with echinococcus Elisa and confirmed with endocyst (germinal layer) taken for histopathology.

In most case a conservative surgical technique (PAIR) and total or partial enucleation of the endocyst is sufficient, followed by medical treatment post operatively with Albendazol and Praziquantel for no less than 3 months.
