[Hydatid cyst presenting with multiple recurrence and pelvic involvement: case report].

Hydatid cyst disease is a parasitic infection which is caused by the metacestode form of Echinococcus granulosus and affects primarily the liver and lung. Bone involvement is found in 1% of patients afflicted with this disease. The spine is involved in about 50% of these cases. Herein, we report a 70 year old male case with pelvic and spinal hydatid cyst who was operated on eleven times.