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Goh et al. Mini-invasive Surg 2019;3:17 Mini-invasive Surgery
DOI: 10.20517/2574-1225.2019.06

Case Report Open Access

A rare cause of ureteric stricture and
hydronephrosis: metastatic esophageal cancer to

the urinary bladder

Darren Goh, Xin Ling Teo, Sey Kiat Terence Lim

Department of Urology, Changi General Hospital, Singapore 529889, Singapore.

Correspondence to: Dr. Darren Goh, Department of Urology, Changi General Hospital, 2 Simei Street 3, Singapore 529889,
Singapore. E-mail: darren.goh.w.y@singhealth.com

How to cite this article: Goh D, Teo XL, Lim SKT. A rare cause of ureteric stricture and hydronephrosis: metastatic esophageal
cancer to the urinary bladder. Mini-invasive Surg 2019;3:17. http://dx.doi.org/10.20517/2574-1225.2019.06
Received: 12 Feb 2019 First Decision: 4 May 2019 Revised: 15 May 2019 Accepted: 17 May 2019 Published: 18 Jun 2019

Science Editor: Giulio Belli Copy Editor: Cai-Hong Wang Production Editor: Huan-Liang Wu

Abstract
The presence of hydronephrosis usually signifies the presence of significant urinary tract obstruction, more
commonly at the level of the ureter, and occasionally at the bladder outlet in cases of bilateral hydronephrosis.
Unilateral hydronephrosis is most commonly caused by a ureteric stone or stricture, and rarely caused by neoplasm.
Metastatic disease to the urinary bladder is rare and usually presents with hematuria, and we report the first case
of hydronephrosis resulting from a metastatic esophageal cancer to the bladder.

Keywords: Hydronephrosis, metastatic esophageal cancer, ureteric stricture

INTRODUCTION
Unilateral hydronephrosis is most commonly caused by obstruction of the ureter due to the presence of a
ureteric stone or stricture, and rarely secondary to a primary ureteric or bladder neoplasm or from direct
invasion or external compression by locally advanced cancers from adjacent organs such as the lower
gastrointestinal and female genitourinary tract. We report the first case of a patient presenting with a
ureteric stricture with hydronephrosis and acute kidney injury secondary to a metastatic esophageal cancer
to the urinary bladder.

CASE REPORT
This is a 72-year-old Chinese male who was diagnosed with cardio-esophageal cancer on esophago-gastro-
duodenoscopy for work up of dyspepsia. Biopsies revealed poorly differentiated adenocarcinoma. Staging

© The Author(s) 2019. Open Access This article is licensed under a Creative Commons Attribution 4.0
International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use,
sharing, adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as long
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