Objectives: To report one case of renal cyst infected by Brucella, an exceptional pathology in our environment.
Methods: 82-year-old patient who was referred from his primary care physician for persistent microhematuria and piuria without evidence of infection.
Results: Radiological studies (XR+US+CTscan) showed a left renal cyst with parietal calcifications. Pathologic study was compatible with complicated cyst, with cultured (+) to Brucella spp.
Conclusions: Renal involvement by Brucella is exceptional, and the cystic renal involvement is by far one of the more exceptional manifestations.