A Case of Marked Hydroureter, Misdiagnosed as a Hydrosalpinx by Ultrasound

The retroperitoneal space of the posterior abdomen and the pelvic retroperitoneum contain the major neural, vascular and lymphatic supply to the pelvic viscera, the urinary system and colorectal system. A pain or mass in the pelvis may arise primarily from the reproductive organs, but it may just as easily arise from the retroperitoneal space, include the urinary tract and the gastrointestinal tract. Therefore, the gynecologic surgeon should be aware of the various conditions associated with retroperitoneal mass and the correct management of these disorders. Hydroureter may misdiagnose as a pelvic mass or retroperitoneal mass. The cause of hydroureter is mainly secondary obstruction such as malignancy, idiopathic retroperitoneal fibrosis and pelvic disease but primary obstructive megaureter should be considered. This report describes a case of marked hydroureter, misdiagnosed as a hydrosalpinx by ultrasound.