Unusual Wilms' Tumor Extending Into the Bladder: A Case Report / 대한비뇨기과학회지

A case of unusual Wilms` tumor growing into the collecting system without invading into the parenchyma of the kidney is reported. The tumor filled completely the renal pelvis and ureter, and extended into the bladder but there was no invasion in the mucosa of renal pelvis, ureter or bladder.