Retroperitoneal hemorrhage due to ruptured renal cyst in PCKD

Case contributed by Craig Hacking
Diagnosis almost certain


Acute flank pain

Patient Data

Age: 60 years
Gender: Male

Polycystic kidneys. Left retroperitoneal hemorrhage. A large dominant cyst in the lower pole of the left kidney has a fluid-fluid level in keeping with hemorrhage and the probable source of the retroperitoneal hemorrhage.

Case Discussion

Bleeding into renal cysts is a well known and common complication of polycystic kidney disease, but occasionally the cysts can rupture externally, as in this case, into the retroperitoneal spaces.

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