Presentation
Acute flank pain
Patient Data
Age: 60 years
Gender: Male
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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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