Hydatidosis is a disease caused by the larval form of E. granulosus and it is usually endemic or highly endemic in countries that surround the Mediterranean Basin. It has a number of important economic and medical consequences. In many countries this disease is a major public health problem and can cause severe morbidity and mortality in humans. Chemotherapy has an important role not only on the treatment of individual patients, but also in conjunction with public health and vector-control measures. However, surgery remains the only reliable means of treatment for hydatid cysts, but it...