Large solitary paravaginal hydatid cyst: a rare cause of urethral injury.

Hydatid cyst is a parasitic infectious disease caused by Echinococcus granulosus. Although the most common site for this parasite is liver, it can be seen in almost all organs. Extrahepatic localization is reported in 14-19% of all cases of abdominal hydatid disease. We report the case of a large echinococcal cyst localized in the paravaginal area in the lower pelvis. A 43-year-old woman was admitted to our gynecology clinic for pelvic discomfort and dyspareunia. During her physical examination, a paravaginal cystic mass was found. Ultrasonography and magnetic resonance imaging revealed a large paravaginal cystic mass. During cyst wall dissection, distorted and fibrotic distal urethra was injured. End-to-end urethroplasty was performed. She had urinary continence after the surgery. Pathology revealed the diagnosis of echinococcosis. Antihelmintics were administered postoperatively, and the patient was discharged after day 7 uneventfully and has been under follow-up for 1 year.