Endometriose in pelvinen Sentinel-Lymphknoten (SLK) von Patientinnen mit rektovaginaler Endometriose (EM)
This prospective study investigated the occurrence of endometriosis in pelvic sentinel lymph nodes of patients diagnosed with rectovaginal endometriosis.
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This prospective study investigated whether endometriosis cells are present in pelvic sentinel lymph nodes (SLKs) in 14 patients with symptomatic rectovaginal endometriosis. During vaginal combined laparoscopic-assisted resection of the rectovaginal septum (with or without bowel resection), patent blue was injected perinodularly and SLKs from the interiliac region were removed and analyzed by immunohistochemistry for estrogen receptor/progesterone receptor (ER/PR), CD10, and cytokeratin to detect endometriosis cells. SLKs were detected in 12 of 14 patients, and typical endometriosis lesions were found in three SLKs; additionally, disseminated ER/PR-positive cells were observed in 10 of 12 SLKs, mainly in the subcapsular sinus and superficial cortex. The paper’s main limitation is the small sample size (14 patients), which constrains generalizability, and while it shows lymphatic dissemination, it does not determine clinical implications such as outcomes. This paper is centrally about endometriosis — it specifically examines endometriosis cell dissemination in pelvic sentinel lymph nodes in rectovaginal endometriosis.
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