Indian Journal of Urology
: 2015  |  Volume : 31  |  Issue : 2  |  Page : 148--149

Renal pyelic fusion anomaly

Suresh Bhat, Fredrick Paul, Siddalingeshwar C Doddamani 
 Department of Urology, Government Medical College, Kottayam, Kerala, India

Correspondence Address:
Dr. Suresh Bhat
Department of Urology, Government Medical College, Kottayam, Kerala


Renal pyelic fusion anomalies are rare and detected incidentally on imaging. Most cases of pyelic fusion anomalies reported are in patients with horseshoe kidney. We report a rare case of pyelic fusion anomaly in normally located kidneys, which has not been reported so far.

How to cite this article:
Bhat S, Paul F, Doddamani SC. Renal pyelic fusion anomaly.Indian J Urol 2015;31:148-149

How to cite this URL:
Bhat S, Paul F, Doddamani SC. Renal pyelic fusion anomaly. Indian J Urol [serial online] 2015 [cited 2021 Jul 25 ];31:148-149
Available from:

Full Text


Renal pyelic fusion anomalies are extremely rare in normally ascended kidneys. Most reported cases of pyelic fusion anomalies involve horseshoe kidneys. We present images of a previously unreported type of renal pyelic fusion anomaly.

 Case Report

A 24-year-old otherwise healthy patient reported with upper abdominal pain of 6 months duration. Ultrasonography showed a smaller right kidney and a normal left kidney. Computed tomography scan of the abdomen revealed the two kidneys in normal position. However, the right renal pelvis was found fused with the left lower moiety pelvis which crossed the vertebral column to form the right ureter. This ureter continued down as normal right ureter and the left upper moiety ureter continued down as left ureter to drain into the bladder normally [Figure 1], [Figure 2], [Figure 3]. The patient was managed symptomatically.{Figure 1}{Figure 2}{Figure 3}


There are only a few case reports of renal pyelic fusion and most are in horseshoe kidneys where the two fused pelves were drained by a single ureter. [1],[2],[3],[4] Most of these cases were associated with other congenital anomalies such as vertebral defects, vesico ureteric reflux, anorectal malformation, etc., Our patient did not have any other congenital anomaly. A previously reported case had pelvic fusion with the dilated left pelvicalyceal system draining into the common pelvis through an obstructed calyx in the isthmus of the horseshoe kidney. [5]


1Currarino G, Weisbruch GJ. Transverse fusion of the renal pelvis and single ureter. Urol Radiol 1989;11:88-91.
2Enganti B, Chitekela N, Nallabothula AK, Lakshmi V, Dandu R, Samavedi S, et al. Renal pyelic fusion with crossed solitary ureter: Case report and review of literature. Int J Urol 2013;20:1043-5.
3Aragona F, Serretta V, Fiorentini L, Marconi A, Spinelli C. Combined renal and pyelic fusion with crossed ectopia of single ureter. Urology 1986;28:339-41.
4Yesilli C, Erdem O, Akduman B, Erdem Z, Gundogdu S, Mungan NA. Horseshoe kidney with pyelic fusion and crossed single ureter. J Urol 2003;170:175-6.
5Ram AD, Thomas RE, Malone P. A new operative technique for a rare case of pyelic fusion. J Pediatr Urol 2011;7:574-5.