A rare presentation of renal Wegener granulomatosis in a child.

We present a rare case of Wegener granulomatosis of the kidney in childhood. The diagnosis was suggested on imaging due to a combination of clinical symptoms, the lack of improvement with antibiotic therapy, and the absence of signs of inflammation on renal imaging. It was confirmed by histological examination following biopsy. The features and appearance of renal Wegener granulomatosis are described, and the differential diagnosis for a childhood renal mass is discussed.