Nonobstructive Bilateral Hydronephrosis & Hydroureter from Nephrogenic Diabetes Insipidus with a Novel Mutation of AQP2 Gene (p.A123G)

Nephrogenic diabetes insipidus (NDI) can cause nonobstructive hydronephrosis. Congenital NDI (CNDI) is caused by a genetic mutation. This case report presents a 12-year-old girl who was incidentally diagnosed with nonobstructive hydronephrosis due to NDI caused by AQP2 gene mutation after being evaluated for microscopic hematuria found on routine health examination at school. The patient's medical and family history was unremarkable, and she complained of nocturia only at the time of the clinic visit. Bilateral hydronephrosis on abdominal ultrasonography prompted a water deprivation test, leading to diagnosis of NDI. Genetic study confirmed p.Asn (AAC)123Ser (AGC) in exon 2 of the AQP2 gene. Polyuria and hydronephrosis improved following arginine-vasopressin therapy. CNDI responsive to treatment should be considered as a possible cause of nonobstructive hydroureter.

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

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.

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

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.

A Case of Bladder Foreign Body with Hydroureter and Stones / 대한비뇨기과학회지

Most foreign bodies found in the bladder are inserted through the urethra. Abnormal psyche senility, inebriation, and eroticism are the most frequent causes for such induction. The following is a report of a male who slipped Nylon silk into the urethra during masturbation and lost it in the bladder while attempting to remove it.

Hydroureter and Hydronephrosis Resulted from prolapse of the Uterus / 대한비뇨기과학회지

In 1923 Brettauer and Rubin reported that eight cases were accompanied with hydroureter and hydronephrosis among 10 patients who were suffering from prolapse of Uterus. And Wallingford, in 1939, investigated six cases of the prolapse and one of them died of Uremia resulting from severe renal damage. A suggestion, now widely believed, is that if the prolapse is neglected for a long time without medical treatment, the hydroureter and the hydronephrosis may develop frequently, because of angulating the ureters as they pass under the uterine arteries. Although Prolapse of the uterus induces the damage to the urinary tract, little attention has been paid for the urological study. The author has been studied an advanced hydronephrosis and hydroureter resulted from prolapse of uterus itself. Follow-up study for six weeks after total hysterectomy showed a great deal of improvement in renal function and NPN.