Villous adenoma of the renal pelvis: a common entity at an uncommon location
Autops. Case Rep; 11 (), 2021
Villous adenoma is uncommonly seen in the urogenital tract and is even more rarely seen in the upper urinary tract and renal pelvis. Like colorectal adenomas, these neoplasms can transform into adenocarcinoma. The preoperative diagnosis is challenging due to their frequent association with hydronephrosis...