The clinical features and long-term surgical outcomes of different types of abdominal wall endometriosis

Purpose To classify abdominal wall endometriosis (AWE) according to the invasive levels of tissue mass, and to compare the differences in clinical characteristics between different types of AWE.

In this study, we retrospectively analyzed the clinical data of 367 patients who had undergone resection of abdominal-wall endometriotic lesions at the Peking Union Medical College Hospital from January 2008 to December 2018, and we divided the patients into three types according to their deepest level of lesion invasion. Type I designated invasion of skin and subcutaneous tissue; type II, of fascia and rectus abdominis; and type III, of peritoneum. We classified, compared, and analyzed the general conditions, clinical manifestations, auxiliary examinations, surgical conditions, postoperative conditions, and recurrence status of patients.

Of the 367 patients, type I patients accounted for 13.62%, type II patients for 56.68%, and type III for 29.7%. With respect to group comparisons, we observed that as the location of the mass deepened, the rate of concurrent pelvic endometriosis increased (P = 0.007), recurrent AWE was augmented (P = 0.02), the size of the mass increased (P < 0.001), the rate of multiple lesions became elevated (P < 0.001), the rate of mesh implantation increased (P < 0.001), the length of postoperative hospital stay (P < 0.001) was lengthened, the number of postoperative fever cases (P = 0.006) increased, and the risk of drainage placement (P < 0.001) was enhanced. The 5-year cumulative recurrence rate was 3.3%, and there was no significant difference in the recurrence rate among various types of AWE.

Type III AWE carries more severe clinical manifestations, larger lesion size, longer operative time, greater intraoperative surgical difficulty, higher necessity of mesh implantation, and longer postoperative recovery process. Complete resection of AWE lesion is the main therapeutically approach and shows relatively low long-term recurrency rate. Access this article We’re sorry, something doesn't seem to be working properly. Please try refreshing the page. If that doesn't work, please contact support so we can address the problem. Similar content being viewed by others Code availability Not applicable.

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Ethics approval This study was approved by the Ethics Committee of Peking Union Medical College Hospital (IRB No. JS-1532). Additional information Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Rights and permissions About this article Cite this article Wu, Y., Dai, Y., Zhang, J. et al. The clinical features and long-term surgical outcomes of different types of abdominal wall endometriosis. Arch Gynecol Obstet 307, 163–168 (2023). https://doi.org/10.1007/s00404-022-06579-0 Received: Accepted: Published: Version of record: Issue date: DOI: https://doi.org/10.1007/s00404-022-06579-0