[Primary pelvic hydatid cyst--case report]

Primary hydatid cyst in the pelvis is an extremely rare site of the disease and occurs in approximately 0.7% of the patients with this disease.

The case of a 65-year-old woman is reported, who was admitted for surgical treatment of incidentally detected pelvis tumor of unclear origin. Intraoperatively, it was noted that the tumor in the pelvis was cystic, resembling a hydatid disease, involving left pararectal space and extending to the sacroiliac joint. The total cystectomy with partial pericystectomy was performed. The section was sent to histopathology, which confirmed intraoperative findings.

A pelvic hydatid cyst is in most cases diagnosed intraoperatively but the disease should be taken into consideration in cases of cystic tumors of unclear origin, especially in endemic regions and in persons with positive history of pet keeping. Surgical management is the treatment of choice. The principal goal is the compromise between the need to completely remove the cyst and the fact that it is a benign disease so the patient should not be unnecessarily exposed to an increased operative risk.