Fig. 2
a Contrast Abdominal computed tomography reveals right side severe hydronephrosis with perinephric collection communicating with right pelvic calyceal system. b Dilated PCS along with filled gelatinous material and multiple brownish papillary nodules found on the surface of renal pelvis and calyces. c Glands and papillae lined by pseudostratified columnar epithelium and show characteristics of adenocarcinoma