5Tolia BM,Iloreta A,Freed SZ,et al. Xanthogranulomatous pyelonephritis detailed analysis of 29 cases and a brief discussion of atypital presentation.J Urol, 1981,126:437.
6Ballesteros JJ,Faus R,Gironella J. Preoperative diagnosis of renal xanthogranulomatosis by serial urinary cytology, preliminary report. J Urol,1980,124:9.
7Lizza EF, Elyaderant MK, Belis JA. Atypical presentation of xanthogranulomatous pyelonephritis:diagnosisby ultrasongraphy and fine needle aspiration biopsy. J Urol, 1984,132:95.
8Malek RS,Elder JS. Xanthogranulomatous pyelonephritis:a clinical analysis of 26 cases of the literature. J Uro1,1978,119:589.