Child Kidney Dis.  2018 Apr;22(1):31-34. 10.3339/jkspn.2018.22.1.31.

A Case of an Ureteropelvic Junction Obstruction Caused by a Crossing Vessel

• Kim MY
• Im YJ
• Hyun HS
• Kang HG
• Ha IS
• Cheong HI
• Park E

• KMID: 2435353
• DOI: http://doi.org/10.3339/jkspn.2018.22.1.31

Abstract

Ureteropelvic junction obstruction is one of the common causes of hydronephrosis in infancy and childhood. Most cases of ureteropelvic junction obstruction are diagnosed prenatally and are usually asymptomatic. Although less common, older children can experience ureteropelvic junction obstruction that presents with symptoms including flank or abdominal pain. Here, we present the case of a nine-year-old healthy girl who had repeated flank pain and abdominal symptoms, with mild left hydronephrosis, for several months. Computed tomography that was performed during the period of acute flank pain revealed aggravated hydronephrosis on her left kidney, which was secondary to an ureteropelvic junction obstruction. She underwent laparoscopic pyeloplasty, and a crossing vessel that passed the ureteropelvic junction was identified. In addition, we reviewed the current literature of this rare entity.

Keyword

Ureteral obstruction; Hydronephrosis; Ureteral diseases

MeSH Terms

Abdominal Pain
Child
Female
Flank Pain
Humans
Hydronephrosis
Kidney
Ureteral Diseases
Ureteral Obstruction