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Fertil Steril. 2010 May 1;93(7):2115-20. doi: 10.1016/j.fertnstert.2009.01.102. Epub 2009 Mar 17.

Severe ureteral endometriosis: the intrinsic type is not so rare after complete surgical exeresis of deep endometriotic lesions.

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  • 1Department of Obstetrics and Gynecology II and Reproductive Medicine, Université Paris Descartes, Assistance Publique, Hôpitaux de Paris (AP-HP), Groupe Hospitalier Universitaire (GHU) Ouest, Centre Hospitalier Universitaire (CHU) Cochin Saint Vincent de Paul, Paris, France.



To evaluate the rate of intrinsic ureteral endometriosis in patients presenting with severe ureteral endometriosis.


Observational study between June 1992 and December 2007.


University tertiary referral center.


Twenty-nine patients presenting deeply infiltrating endometriosis (DIE) with severe ureteral endometriosis. Severe ureteral endometriosis was defined as DIE lesions causing significant obstruction to the urinary flow with ureteral stenosis.


Complete surgical exeresis of DIE lesions.


Pre- and peroperative evaluation associated with histologic analysis. Intrinsic ureteral endometriosis was defined as presence of DIE lesions infiltrating the ureteral muscularis.


In a series of 627 patients with histologic proved DIE, we observed 29 (4.6%) patients with severe ureteral endometriosis. Ureteral lesions (n = 34) were right sided in 7 (24.1%) patients, left sided in 17 (58.6%) patients, and bilateral in 5 (17.3%) patients. Eleven (37.9%) patients presented intrinsic lesions. Out of the 34 ureteral lesions 13 (38.2%) were intrinsic. In cases of radical ureteral surgery (n = 21 patients; n = 24 ureteral lesions) intrinsic ureteral DIE was observed in 52.4% (11 cases) of the patients and in 54.2% (13 cases) of the ureteral lesions.


The prevalence of intrinsic ureteral endometriosis is underestimated. This result must be taken into account when specifying the surgical modalities for patients presenting with severe ureteral endometriosis.

Copyright 2010 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

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