Transurethral transvesical endoscopic management of a retrovesical hydatid cyst.

We present a technique of transurethral transvesical endoscopic management of an intraperitoneal retrovesical hydatid cyst. Cystoscopy is performed using a 20.8F nephroscope. The cyst is punctured using an 18-gauge, 36-cm needle through the nephroscope operating channel. Saline (20%) is used as scolicidal agent. After balloon tract dilation, the nephroscope is introduced into the cyst, and the hydatid material is evacuated.