Untersuchungen zum Vorkommen von Endometrioseläsionen in pelvinen Lymphknoten bei Patientinnen mit tief infiltrierender Endometriose
This study found endometriosis lesions and hormone receptor-positive cells in pelvic lymph nodes, including sentinel nodes, of patients with deep infiltrating endometriosis, suggesting systemic spread.
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The paper investigates whether deep infiltrating endometriosis is associated with endometriosis lesions in pelvic lymph nodes by systematically examining local randomly sampled lymph nodes and sentinel lymph nodes from patients with predominantly deep infiltrating endometriosis. Using immunohistochemistry with antibodies against estrogen and progesterone receptors (ER/PR), CD-10, and cytokeratin, the authors detect both fully formed endometriotic lesions and free ER/PR-positive cells in sentinel nodes and randomly extracted nodes, with lesions being significantly larger in sentinel nodes. The study argues that these findings support lymphatic (lymphogenous) spread and frame endometriosis as systemic, but it explicitly notes that the biological significance of the free ER/PR-positive cells and the lesions in lymph nodes remains unclear and that long-term evaluation of nodal lesions and relapse risk is needed. This paper is centrally about endometriosis — specifically, it examines endometriotic lesions in pelvic lymph nodes in patients with deep infiltrating endometriosis.
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