Peripelvic cyst of the kidney

Case contributed by Jayanth Keshavamurthy
Diagnosis almost certain


Cardiac MRI for cardiomyopathy evaluation. What non-cardiac finding is shown here?

Patient Data

Age: 60 years
Gender: Female
  • Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

On SSFP sequences the left kidney has areas of bright fluid signal and has no enhancement on delayed imaging. There is no hydronephrosis. See how it insinuates around the ureter and renal pelvis without a mass effect. There is no fat intensity.

On post-contrast T1, no enhancement and clear separation from ureter and renal pelvis.

On T2 imaging there is intermediate intensity likely due to the cell and protein content.

This is the classic appearance of a peripelvic lymphatic cyst.

Case Discussion

Incidental finding of a classic left peripelvic cyst. No hydronephrosis, no follow up necessary.

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