Presentation
Renal dysfunction. There is a known congenital renal tract abnormality. There is a right-sided double J stent in situ.
Patient Data
The non-contrast CT study demonstrates right pelviureteric junction (PUJ) obstruction, and moderate chronic hydronephrosis, with a satisfactorily sited double J stent in situ.
There is no nephroureterolithiasis bilaterally.
There is an atrophic left kidney with multiple simple cysts and a solitary, large, dominant,
The CT study is otherwise normal.
Multiparametric non-contrast MRI of the renal tracts confirm a right-sided pelviureteric junction (PUJ) obstruction with a satisfactorily sited double-J ureteric stent in situ and persistent hydronephrosis.
There are multiple left-sided, pelvi-infundibular, non-communicating renal cysts with a dominant upper pole cyst.
There is no renal ectopia, no horseshoe kidney and no renal duplication anomaly.
Case Discussion
Features consistent with known congenital right PUJ obstruction and a left-sided
multicystic dysplastic kidney (MCDK).
There have been multiple prior right-sided surgical interventions with a residual double J stent in situ and persistent hydronephrosis as demonstrated.
The patient's renal function continues to deteriorate and currently, the patient is on hemodialysis.
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