Tumorförmige intestinale Endometriose mit Lymphknotenbeteiligung

This paper reports three cases of intestinal endometriosis presenting with tumor-like lesions or severe bowel stenosis, investigated through intraoperative frozen section and histopathology, with attention to coexisting female genital tract involvement. In the 41-year-old patient, a sigmoidal tumorlike lesion with pericolic lymph node involvement and suspected malignancy was shown histologically to be intestinal endometriosis involving pericolic lymph nodes, uterus, left tube, and right ovary under an adenomyosis pattern; the two other 26-year-old patients had sigmoid disease causing marked fibrosis with stenosis up to 75% and one had blood in stool. The authors emphasize a key limitation: enteric endometriosis remains difficult to diagnose and cannot be reliably excluded clinically when lymph nodes are involved. This paper is centrally about endometriosis — it details tumor-like intestinal endometriosis with lymph node involvement and discusses diagnostic differentiation from malignancy.

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