Presentation
Renal cysts on US exam.
Patient Data
Age: 65 years
Gender: Female
From the case:
Renal sinus cysts
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Axial non-contrast

Fluid-density non-enhancing cysts closely abutting both the pelvis and infundibula. Stretched and displaced of both pelvicalyceal systems noted.
Case Discussion
Peripelvic cysts should not be confused with hydronephrosis or parapelvic cyst.