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Xanthogranulomatous pyelonephritis is an atypical form of severe chronic renal parenchymal
infection, which can be mistaken for tumor or other inflammatory renal disease due to similar clinical
manifestations.
This disease was classified into three stages based on the extent of involvement of renal and
adjacent tissue by the xanthogranulomatous process. In stage I (nephric), the characteristic xantho-
granulomatous inflammatory process is confined to the kidney.
The... |