Open Access

RESIDENT’S CORNER

Neuroendocrine tumor causing ureteral obstruction in a patient with prior ileal conduit

Jordan Alger¹, Clare Mallahan², Tom Deng³, John Marshall⁴, Ross Krasnow⁵

1 Department of Urology, Georgetown University Medical Center, Washington, DC, USA
2 Georgetown University School of Medicine, Washington DC, USA
3 Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
4 Department of Hematology and Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
5 Department of Urology, MedStar Washington Hospital Center, Washington, DC, USA
Address correspondence to Dr. Jordan Alger, Department of Urology, MedStar Georgetown University Hospital, 3800 Reservoir Road NW, PHC 1, Washington, DC 20007 USA

Canadian Journal of Urology 2021, 28(6), 10953-10955.

Abstract

Acquired hydronephrosis following cystectomy and ileal conduit urinary diversion for bladder cancer is most commonly caused by stricture of the ureter or the ureteroenteric anastomosis. Nevertheless, malignant obstruction due to ureteral tumor recurrence must be ruled out. Neuroendocrine tumors of the ureter are extremely rare and an unlikely cause of hydronephrosis in this setting. We present the first reported case of a patient with a history of bladder cancer and an ileal conduit presenting with hydronephrosis secondary to an obstructing carcinoid tumor of the ureter.

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Keywords

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