[Xanthogranulomatous pyelonephritis].

OBJECTIVE: To study the diagnosis and treatment of xanthogranulomatous pyelonephritis (XGP).

METHOD: The clinical characteristics, diagnosis and therapy of 28 cases of XGP were discussed.

RESULTS: The clinical characteristics of XGP included: calculi or obstruction in urinary tract, and damage to kidney; complication of urinary tract infection; anemia, increased ESR and dysfunction of liver. 13 patients with XGP were diagnosed before operation. Nephrectomy was performed in 20 patients. Kidneys were preserved in 8 patients. All patients recovered after operation.

CONCLUSIONS: The clinical characteristics and image of XGP are good to preoperative diagnosis. They are useful to differentiate XGP from renal carcinoma and other renal infectious disease. Surgery and antimicrobial are important to XGP. Nephrectomy might be done in patients of stage III kidney may be preserved in patients of stage I and stage II.