Retrospective descriptive study concerted 21 cases of lung hydatid cysts collected from 2006 to 2010, with an average the 4.2 ± 2 cases / year). The age of patients is between 8 and 75 years, with an average of 36 ± 4.3 years. Women are most at risk with 76% of cases (sex ration (F / M) = 3). The distribution of the disease in the community has shown us that the rural areas were the most affected (61%) compared to rural. 95% of patients underwent surgery only, 5% had two interventions. The outcome was favorable.