Endometriose: Diagnose ohne histologisches Korrelat – Möglichkeiten der Verbesserung
Performing additional section cuts significantly improves the histological detection rate of endometriosis, especially for peritoneal lesions and minimal disease, with three cuts being sufficient.
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The paper studied how much diagnostic benefit is gained by performing serial sectioning (Stufenschnitte) of endometriosis-suspicious biopsies, motivated by the wide reported variability in histologic detection rates (18–100%). In a prospective study of 100 consecutive patients with endometriosis-typical symptoms, 242 suspected lesions and 68 control biopsies from paraffin-embedded tissue underwent additional section levels when the first H&E section was negative, with the number of levels needed to detect endometrial glands and stroma documented. Histologic confirmation improved significantly from 63.2% to 73.6% after additional serial sections (p<0.001), with the largest gain up to 15% in peritoneal lesions; overall, visual diagnosis without serial sections was histologically confirmed in 78/100 patients, increasing to 87/100 with serial sections, and 98% of confirmed lesions were detected within 3 of 4 section levels. The authors explicitly conclude that serial sectioning improves detection, especially for peritoneal and minimal/geringgradige disease, and report that three serial sections appear sufficient, which relates directly to improving histologic diagnosis of endometriosis. This paper is centrally about endometriosis — it evaluates how serial histologic sectioning improves detection when endometriosis is diagnosed without a histologic correlate.
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