FEVER OF UNKNOWN ORIGIN FOLLOWING AN UPPER GASTROINTESTINAL SERIES INA PATIENT WITH POLYCYSTIC KIDNEY-DISEASE

Hematomas as a source of fever have been well recognized. We describe a patient with polycystic kidney disease (PCKD) who developed a fever of unknown origin following an upper gastrointestinal (UGI) series. Wo rkup revealed a hemorrhagic cyst of a kidney at the level of the duode num, where a paddle had been used during the upper GI series to compre ss the duodenum. Evaluation for the presence of infection, including b lood and urine cultures, yielded negative results. This case indicates the importance of including hemorrhagic cysts in the differential dia gnosis of fever in a patient with PCKD, particularly with a history of trauma. It is likely that fever develops due to the release of interl eukin-1 by the hemorrhagic cyst.