A case report of successful percutaneous aspiration, injection, and re-aspiration (PAIR) technique for treatment of retrovesical pelvic hydatid cyst.

Pelvis is a rare location for occurrence of hydatid cyst with only a few cases reported in the literature. All the previous reports of pelvic hydatid cysts were managed with either surgical exploration and excision or laparoscopic intervention. In this case report, we describe the successful treatment of a large pelvic hydatid cyst located in the retrovesical space using the percutaneous aspiration, injection, and respiration (PAIR) technique.