The Ureteral Stump

Urothelial tumor development at the ureteral stump 25 years after simple nephrectomy

“…In addition, malignant metamorphosis in areas of leukoplakia, hyperplastic and metaplastic changes due to chronic irritation, and exposure to carcinogenic agents are possible causes of ureteral stump tumors. [6] In our case, the width of the ureteral stump (3 cm) and the fact that the lumen of the ureteral stump contained urine, which had entered the lumen via vesicoureteral regurgitation before the tumor obstructed the ureteral orifice, suggested chronic irritation attributable to reflux.…”

Empyema of the Ureteral Stump. An Unusual Complication Following Nephrectomy

“…This rule however does not apply for all malignant conditions of the kidney. Although transitional cell carcinoma of the kidney is known to be a multifocal lesion and the standard practice to remove the entire ureter as well as a small cuff of bladder when performing nephrectomy for this disease has long been established [3], renal cell carcinoma that metastasizes to the ureteral stump is rare [4]. There have been only a few series showing the natural history of the ureteral stump after nephrectomy.…”

Transitional cell carcinoma of ureteral stump after radical nephrectomy for renal cell carcinoma

“…Bergman suggested relation ureteral stump tumor and chronic inflammation. 8 Ikeda et al reviewed 30 cases of ureteral stump carcinoma after nephrectomy for benign conditions, such as a hydronephrosis, urinary calculi or renal tuberulosis. 9 Eight cases (26.7%) had elements of squamous cell carcinoma, which has a higher incidence than that of primary ureteral carcinoma.…”