Ureteral endometriosis: an uncommon cause of ureteral stricture

Apostolos Vrettos, Maria Prasinou, R. Frymann, Rob Frymann
Quantitative imaging in medicine and surgery · 2016 · vol. 6(2) , pp. 231–232 · doi:10.21037/qims.2016.01.02 · PMID:27190779 · W2274526034
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⚙ AI-generated summary by claude@2026-06, 2026-06-07 ⓘ

This paper discusses ureteral endometriosis, an uncommon cause of ureteral stricture that can lead to silent obstruction, hydronephrosis, and potentially renal failure in women of reproductive age.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-07 ⓘ

This paper reports a single 43-year-old woman with recurrent right-sided colicky pain and hydronephrosis, in whom imaging (CT KUB, IVU, and MRI) suggested right distal ureteral narrowing without a clear cause. Laparoscopy with histologic assessment identified endometrial tissue encasing the distal ureter, and because the stenosis was near the ureterovesical junction she underwent open ureterocystoneostomy, after which her pain resolved and renal function remained stable on outpatient follow-up. A key limitation is that the evidence is based on one case, so broader diagnostic performance or treatment comparisons are not established. This paper is centrally about endometriosis — it describes ureteral endometriosis as an uncommon cause of ureteral stricture and hydronephrosis.

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Abstract

Endometriosis is a common disorder which affects 5–10% of women of reproductive age, for which the gold standard investigation for the diagnosis is laparoscopy and biopsy with histological confirmation (1,2). Urinary tract endometriosis occurs in ~1% of women with pelvic endometriosis (3). If it involves the ureters, it can present with renal colic and can cause hydronephrosis and renal complications due to obstruction, mainly in women of child-bearing age. The symptoms can be non-specific. Delayed diagnosis can lead to renal failure due to silent obstruction of the ureter (4).

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endometriosis

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