Midureteral Hypoplasia at Congenital Midureteral Stricture.
10.4111/kju.2008.49.6.570
- Author:
Jong Jin OH
1
;
Woong Gi JANG
;
Sang Hyun JEE
;
Young Kwon HONG
Author Information
1. Department of Urology, College of Medicine, Pochon CHA University, Seongnam, Korea. Urohong@yahoo.co.kr
- Publication Type:Case Report
- Keywords:
Prenatal hydronephrosis;
Midureteral stricture
- MeSH:
Constriction, Pathologic;
Fibrosis;
Follow-Up Studies;
Humans;
Hydronephrosis;
Male;
Muscle, Smooth;
Stents;
Ultrasonography, Prenatal;
Ureter;
Urography;
Vesico-Ureteral Reflux
- From:Korean Journal of Urology
2008;49(6):570-573
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Hydronephrosis is the most common abnormal finding of genitourinary tract detected by fetal ultrasonography. The causes of majority are attributed to ureteropelvic junction(UPJ) obstruction. The remaining are secondary to vesicoureteral reflux, megaureter, or posterior urethral valves. Congenital midureteral stricture is an unusual cause of hydronephrosis. We report a case in a one month old male baby with hydronephrosis(grade V, 20mm in AP diameter). He was diagnosed as a ureteropelvic junction obstruction. A mid ureteral stricture was identified with intraoperative anterograde pyelography. After removal of severely strictured ureter, the dilated proximal end was anastomosed to the spatulated distal ureter by microscope. Pathologic finding was subepithelial fibrosis and segmental inner smooth muscle attenuation. Ureteral stent was removed 2 months after surgery. Degree of hydronephrosis was markedly reduced on the follow up ultrasonography(14mm in AP diameter) 6 months after surgery.
