Ureteral endometriosis: MR imaging appearance for predicting complex procedures.
Ling Rennan1, Shuo Yao2, Hongtao Jin3
1Department of Radiology, Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, 1st Affiliated Hospital of Southern University of Science and Technology, Shenzhen 518020, China.
Ureteral wall thickening on MRI can identify intrinsic ureteral endometriosis and predict the need for complex surgical procedures. This imaging finding aids in surgical planning for endometriosis affecting the ureter.
Area of Science:
- Radiology
- Gynecologic Surgery
- Oncology
Background:
- Ureteral endometriosis (UE) is a challenging gynecologic condition.
- Accurate identification of intrinsic ureteral wall involvement is crucial for surgical planning.
- Predicting the complexity of surgical procedures for UE is essential.
Purpose of the Study:
- To evaluate MRI characteristics for identifying intrinsic ureteral wall involvement in UE.
- To determine if MRI findings can predict the need for complex ureteral procedures.
Main Methods:
- Retrospective review of 33 UE lesions in 30 patients over 20 years.
- Systematic analysis of 13 MRI and 5 clinical characteristics.
- Comparison of MRI findings with histology and surgical outcomes.
Main Results:
- Intrinsic UE was identified in 8 of 33 lesions.
- Ureteral wall thickening was a significant predictor of intrinsic UE (AUC, 0.806).
- Significant differences in creatinine, ureteral thickening, and adenomyosis were noted between simple and complex procedures.
Conclusions:
- Ureteral wall thickening on MRI is a valuable criterion for predicting intrinsic UE.
- This MRI finding can help anticipate the requirement for complex ureteral procedures in patients with endometriosis.
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