TY - JOUR T1 - Cholesteatoma of the upper urinary tract JO - International braz j urol A1 - Lima, Daniel X. A1 - Rabelo, Eli A. S. A1 - Salles, Paulo G. O. SN - 1677-5538 UL - 10.1590/S1677-55382004000600007 VL - 30 Y1 - 2004 PB - Brasil ER -