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Bilateral s-shaped kidneys: A rare congenital malformation.

Ranjan N, Singh RP, Upadhyay R, Kumar V - Indian J Urol (2015 Jul-Sep)

Bottom Line: A bilateral S-shaped kidney is a rare anomaly in which both the kidneys are in their normal position, in contrast to the commonly reported S-shaped fusion anomaly, in which the contralateral kidney crosses the midline to fuse with opposite kidney leaving the ipsilateral renal fossa empty.Here we present the diagnosis and management of a case of bilateral S-shaped renal anomaly with associated left pelviureteric junction obstruction and nonfunctioning kidney and right renal stones.Left kidney was managed by open nephrectomy and right kidney by PNL.

View Article: PubMed Central - PubMed

Affiliation: Department of Urology, Indira Gandhi Institute of Medical Sciences, Patna, India.

ABSTRACT
A bilateral S-shaped kidney is a rare anomaly in which both the kidneys are in their normal position, in contrast to the commonly reported S-shaped fusion anomaly, in which the contralateral kidney crosses the midline to fuse with opposite kidney leaving the ipsilateral renal fossa empty. Here we present the diagnosis and management of a case of bilateral S-shaped renal anomaly with associated left pelviureteric junction obstruction and nonfunctioning kidney and right renal stones. Left kidney was managed by open nephrectomy and right kidney by PNL.

No MeSH data available.


Related in: MedlinePlus

CT scan of bilateral S shaped kidneys
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Figure 3: CT scan of bilateral S shaped kidneys

Mentions: Sixteen-year-old male patient presented to us with left dull aching flank pain. Intravenous urogram (IVU) showed an excretory kidney on right side with three radiopaque shadows apparently outside the pelvicalyceal system [Figure 1]. The left renal moiety was non-visualized. A retrograde pyelogram showed an S-shaped kidney on the right side with the upper calyces pointing laterally and the medial calyces pointing medially [Figure 2]. On the left side a grossly hydronephrotic kidney was seen. Computed tomography scan showed bilateral S-shaped kidneys with the upper calyces pointing posterolaterally and the lower calyces pointing anteromedially. On the left side severe cortical thinning and non-excretion of contrast were noted [Figure 3]. A 99m-DTPA acid scan revealed right S-shaped renal anomaly with a non-functioning kidney on the left side. As the patient was symptomatic on the left side we proceeded with left renal exploration. The left kidney was found to have S-shaped renal anomaly with two separate set of calyces oriented in opposite directions with a common pelvis and ureter. Pelviureteric junction obstruction (PUJO) with severe parenchymal loss was present. A simple nephrectomy was done. After 1 month the right renal stones were treated by percutaneous nephrolithotomy.


Bilateral s-shaped kidneys: A rare congenital malformation.

Ranjan N, Singh RP, Upadhyay R, Kumar V - Indian J Urol (2015 Jul-Sep)

CT scan of bilateral S shaped kidneys
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4495508&req=5

Figure 3: CT scan of bilateral S shaped kidneys
Mentions: Sixteen-year-old male patient presented to us with left dull aching flank pain. Intravenous urogram (IVU) showed an excretory kidney on right side with three radiopaque shadows apparently outside the pelvicalyceal system [Figure 1]. The left renal moiety was non-visualized. A retrograde pyelogram showed an S-shaped kidney on the right side with the upper calyces pointing laterally and the medial calyces pointing medially [Figure 2]. On the left side a grossly hydronephrotic kidney was seen. Computed tomography scan showed bilateral S-shaped kidneys with the upper calyces pointing posterolaterally and the lower calyces pointing anteromedially. On the left side severe cortical thinning and non-excretion of contrast were noted [Figure 3]. A 99m-DTPA acid scan revealed right S-shaped renal anomaly with a non-functioning kidney on the left side. As the patient was symptomatic on the left side we proceeded with left renal exploration. The left kidney was found to have S-shaped renal anomaly with two separate set of calyces oriented in opposite directions with a common pelvis and ureter. Pelviureteric junction obstruction (PUJO) with severe parenchymal loss was present. A simple nephrectomy was done. After 1 month the right renal stones were treated by percutaneous nephrolithotomy.

Bottom Line: A bilateral S-shaped kidney is a rare anomaly in which both the kidneys are in their normal position, in contrast to the commonly reported S-shaped fusion anomaly, in which the contralateral kidney crosses the midline to fuse with opposite kidney leaving the ipsilateral renal fossa empty.Here we present the diagnosis and management of a case of bilateral S-shaped renal anomaly with associated left pelviureteric junction obstruction and nonfunctioning kidney and right renal stones.Left kidney was managed by open nephrectomy and right kidney by PNL.

View Article: PubMed Central - PubMed

Affiliation: Department of Urology, Indira Gandhi Institute of Medical Sciences, Patna, India.

ABSTRACT
A bilateral S-shaped kidney is a rare anomaly in which both the kidneys are in their normal position, in contrast to the commonly reported S-shaped fusion anomaly, in which the contralateral kidney crosses the midline to fuse with opposite kidney leaving the ipsilateral renal fossa empty. Here we present the diagnosis and management of a case of bilateral S-shaped renal anomaly with associated left pelviureteric junction obstruction and nonfunctioning kidney and right renal stones. Left kidney was managed by open nephrectomy and right kidney by PNL.

No MeSH data available.


Related in: MedlinePlus