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Huge maternal hydronephrosis: a rare complication in pregnancy
Hsiu-Huei Peng1, Chin-Jung Wang, Chih-Feng Yen
1Department of Obstetrics and Gynaecology, Division of Gynaecologic Endoscopic Surgery, Chang Gung Memorial Hospital, Lin-ko Medical Center, 5 Fu-Hsing Street, Kwei-Shan, 333, Tao-Yuan, Taiwan.
Abstract:
A huge maternal hydronephrosis is uncommon in pregnancy and might be mistaken as a pelvic mass. A 21-year-old primigravida was noted at 25th week of gestation to have a visible bulging mass on her left flank. The mass was originally mistaken as a large ovarian cyst but later proved to be a huge hydronephrosis. Retrograde insertion of ureteroscope and a ureteric stent failed, so we performed repeated ultrasound-guided needle aspiration to decompress the huge hydronephrosis, which enabled the patient to proceed to a successful term vaginal delivery. Nephrectomy was performed after delivery and proved the diagnosis of congenital ureteropelvic junction obstruction.